In this video the instructor shows how to add and subtract rational expressions. When you have an addition or subtraction problem of rational expressions, first look and compare the denominator of all the terms. If all of them have the same denominator then the expression can be written as a fraction whose denominator is the original common denominator and whose numerator is the sum of numerators of all the other terms. Simplifying the numerator by adding and subtracting the like terms gives ...
This video shows the method to add rational expressions with different denominators. The first step in this process involves finding the LCD. After this is done, the numerator and denominator are multiplied by a specific number so that the fractions are rewritten with common denominators. In the second step the numerators are added or subtracted according to the problem with LCD in the denominator. Simplify the numerator by adding or subtracting like terms. After this, we get a rational expre...
In this tutorial the instructor shows how to factor a trinomial with Greatest Common Factor (GCF) and then how to group it. The first thing you have to do when you want to factor a trinomial is look for the GCF. First factor the numerical coefficients of the terms of the equation. Now separate out the common numerical factor and if any common variable. This leaves you with a binomial to be factored. Now to solve this multiply the numerical coefficients of the first term and the last term and ...
This video tutorial shows you the proper way to find the GCF, or greatest common factor. While this is not necessary, the video shows a method of drawing a T chart. List both the numbers that you need to find the GCF, then list there factors, including the number 1. Once you display your factors of both numbers it is a clear cut visual of what the GCF is. In the case of the problem on the video the number 4 has factors of: 1, 2, 4 and the number 20 has factors of: 1, 2, 4, 5, 10, and 20. Ther...
This video shows you how to easily add two fractions with uncommon denominators. To add the two fractions you must translate the fractions into its higher equivalent form, with a common denominator. To find a common denominator, you must find the lowest multiple that both denominators can go into. You must multiply both the numerator and the denominator by a number, so that the denominator can go into the lowest common multiple you found earlier. Then, simply add the numerators and keep the s...
This is a video that teaches how to add and subtract fractions. For fractions that have like denominators, you simply add the numerator and keep the denominator. Next, you reduce the fraction to its lowest term.
In this tutorial the instructor shows how to subtract mixed numbers with common denominators. He explains the method using an example. He does this by subtracting the whole numbers separately and also subtracts the fraction parts separately. Now he finally puts both those results side by side and if the obtained result is not further deductible, it gives us a new whole number which is our desired result. If you want to learn how to subtract mixed numbers with common denominators watch this tu...
A simple video showing how to subtract fractions with common denominators. The denominators is the bottom number of a fraction and the numerator is the top number. So in the fraction of one half 1 is the numerator and 2 is the denominator. If you have fractions with same denominator you can subtract the numerators to find the difference. After the subtracting the numerators add the common denominator to complete the fraction. So five sevenths subtracted by one seventh equals four sevenths. If...
Watchers of this video will learn how to find the "lowest common multiple", the lowest whole number that can be divided by each of two numbers evenly. For example, the lowest common multiple of 8 and 12 is the lowest number of which 8 and 12 are both factors. To find the lowest common multiple of 2 numbers, find the factors of both numbers. One way to do this is to make a "factor tree", drawing branches with factors from each number until it cannot be factored any more. Once both numbers are ...
This science experiment will show you how to turn a penny into gold with common chemicals. This video tutorial will demonstrate turning the copper penny into a silver penny and into a gold cent. All you need to make gold pennies is sodium hydroxide (also known as lye), zinc powder, a small glass beaker with some distilled water in it, a clean copper penny, a couple of measuring spoons, and a glass stirring rod.
Dreams don't have a one-size-fits-all meaning. But here are the broad interpretations of the most common ones, as well as tips for deciphering your quirkier journeys. All you need are dreams & a pen and paper. Did you know? The average person has 5 dreams a night.
If you like cards, and you like tricks, you've come to the right spot to learn how to do some amazing card tricks. You're probably not a magician, but that doesn't mean you can't perform any magic, especially with a deck of cards. Just watch this magic revealed... see how to make some card illusions.
The guys at the SketchUp show have received some great SketchUp questions recently. After a careful board meeting with lots of people in suits and ties and plenty of donuts and coffee, they decided to answer those questions in this podcast. In this video, they tackle the following beginning and advanced SketchUp topics: Getting a grasp of your Keyboard Shortcuts, Optimizing Print Quality, and creating Tensile Structures using the famed Soap Skin Bubble plugin. So if you need any help with Ske...
Check out this instructional language video to learn how to speak Cherokee! In this lesson, learn how to say common greetings in Cherokee of the Giduway dialect. This video is great for beginners who want to improve their Cherokee language skills. Learn the words for "hello," "how are you," "I'm good and you?" in the Giduwah dialect of the Cherokee language.
Learn how to overcome and fix four common swim faults with this lesson from six-time Ironman champion Dave Scott. Check out this swimming tutorial video that explains how to correct faults while swimming. Concentrate on your stroke mechanics in the water, and learn how to correct common flaws when swimming with this instructional fishing video.
There is no cure for the common cold but you can help the symptoms. Learn prevention tips and common cold remedies from Pharmacologists Joe and Dr. Terry Graedon. Use vitamin D, zinc, or ginger tea to beat that nasty cold.
Walking into a pharmacy with a cold can we overwhelming with all the choices of over the counter drugs. In this how to video Pharmacologist Joe Graedon shows you how to prevent the common cold with home remedies.
It is estimated that 6 million people in the UK suffer from urinary incontinence, and it is twice as common in women as men. In this exclusive guide, Dr Harper explains the causes of this surprisingly common, but distressing, condition and advises on the exercises, techniques and surgery that can help alleviate the problem. Suffering in silence is the only option no longer available. Watch this video tutorial and learn how to treat urinary incontinence.
This video shows students how to add fractions with different denominators. To add different fractions you must be able to find the least common denominator.
The long, long, loooong wait finally ended this week for the augmented reality community as the Magic Leap One was finally released. The Florida-based company has loomed over the industry for years promising something big, and now the AR cat is finally out of the bag. Now we get to see if it will live up to expectations, but early reviews are a bit skeptical.
A partnership between augmented reality company Zappar and IoT services provider EVRYTHNG will bring AR experiences to consumers while supplying market data to brands.
There's a new operating system on the horizon, and this one's so big that it may actually live up to its galactic moniker. Andromeda, a merging of Android and Chrome OS, has the potential to bring Google to the ubiquitous status that Microsoft's Windows enjoyed in the '80s and '90s.
This video will teach doctor and medical students how to perform a full abdomen examination. John D. Gazewood, MD, MSPH, will show you the whole process, from the first steps of inspecting the abdomen, looking for abdominal contour and symmetry, to auscultation, percussion, and palpation of the abdomen. Some common findings during the inspection phase of the exam could be scars, striae, colors, jaundice, and prominent veins.
There are some simple techniques to correct common workout mistakes. You should look for cues, which come in forms such as lack or form or lack of engagement. Elastic bands and be used in order to help direct someone into proper form. This will give them resistance and help them to see/feel the proper motion. You should be further pushing them in the incorrect motion with resistance. Adding a heavy chain or a weight to the lower back during pushup is also an example. Resistance may be used wi...
The FG-42 machine gun is one of the many brilliantly-designed weapons the Nazi war machine produced during its misguided attempt to take over the world. If you want to make a WWII battles set out of Legos, having some tiny versions of these guns will make your Nazi pieces much more historically accurate and intimidating. This video features detailed instructions for modifying one of the Lego Storm Trooper guns as common as raindrops to look like a FG-42 using only some common hobby tools.
Need to know how to figure out the least common multiple or LCM of two given numbers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to...
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 582nd installment in their series of digital spreadsheet magic tricks, you'll learn how to understand and fix the nine most common formula errors in Microsoft Excel. Specifically, you'll learn how to interpret and resolve #######, #NAME?, #N/A, #REF!, #VALUE!, #NUM!, #DIV/0!, Circular Cell Reference, and #NULL! errors.
The University of Michigan teaches you how to use nasal irrigation to get rid of common nasal sinus symptoms without reaching for those over the counter medications. The best part of nasal irrigation is that it handles conditions that medication cannot - such as post nasal drip and the common "stuffy nose". This can work for most allergies, even if you are already on medication. Water used for nasal irrigation should be luke warm and should contain about a quarter teaspoon of salt into an 8 o...
This video illustrate us how to make a hovercraft with common household items. To build one, first of all, collect all of the items required for making it. You need a CD, bottle cap, balloon and super glue. Then start by applying glue to the lower end of the cap and sticking it to the center of the CD and let it dry. After it has dried, blow up the balloon and secure it up on the bottle cap tightly. Now open the bottle cap and let the balloon deflate.
Back pain is a common discomfort that women experience during and after pregnancy. Though a short, effective standing and seated series, this yoga how to video concentrates on alleviating some of these common aches and pains. Side bending poses help release lower back pain by stretching the latissimus dorsi (lower back) muscles. Forward bend and hip openers release and extend the lower back, hip and hamstring muscles. Twisting poses help stretch and release the back and shoulder muscles, crea...
This video tutorial is in the Education category which will show you how to subtract basic fractions in simple mathematics. You can do basic subtraction of fractions if the denominators are the same. If they are not, then find the lowest common multiple of the denominators and convert the denominators to their lowest common multiple. For example, to subtract 1/2 from 3/4 find the common multiple of 2 and 4, which is 4. So, the problem 3/4 - 1/2 can now be written as 3/4 - 2/4. Since, the deno...
In this tutorial, we learn how to identify common knitting abbreviations. A yfwd is also known as a yarn forward. An sl 1 is also known as a slip 1 and a k1 is also known as a knit 1. A psso is a pass slipped stitch over and a k2tog is known as a knit 2 together. These are common abbreviations in knitting patterns, when you learn these you will be able to knit more quickly when you are reading a pattern that is written on text. After this, you can make any creation you want and read the direc...
Want to know how to fix common Microsoft Windows 7 registry errors? This clip will introduce you to an application which makes the task a simple one. For details, including step-by-step information on where to download and install said app, watch this video guide.
Need help figuring out how to find the greatest common factor and/or the least common multiple of two given numbers? Learn how with this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
Learning proper American English usage is a challenge, but fortunately this video is here to explain the usage of one common phrase to the non-native English learner. That phrase, one near and dear to the hearts of Americans, is "go shopping". This simple instructional video point out common mistakes that English learners make and shows how to use the phrase correctly in context.
In this video the tutor shows how to add fractions. Fractions are numbers in the form a/b, where a and b are normal numbers. He shows that to add two fraction we need their denominators to be same. If they are not same we need to take their least common multiple and change the fractions so that they have equal denominators. Now the numerators of these fractions can be directly added and the resultant fraction contains this numerator along with the original common denominator. Now this fractio...
Flowers may be beautiful, but they're not usually appetizing. Sure, nasturtiums are hip in fancy restaurants, but they're primarily used as a garnish. Granted, fried squash blossoms are incredible, but the point remains: flowers are usually reserved for looking at, not masticating.
In this video, we learn how to use secure online passwords. There are a ton of things to consider when creating a password. A weak password is something that someone can easily guess. If you are using a birthday, common dictionary word, child's name, or something common then you are at risk. Your password should combine letters and numbers, and be at least eight characters long. It should also be completely random and have upper and lower case letters. You can use a password assistant if you ...
Dead lifts have a great corrective capacity when done properly.The dead lifts can be done just by picking weights off the floor or in a smart and meticulous way.When doing dead lifts there is a lot of rotation in the upper arm,and many people or athletes are not doing the dead lifts properly.When you do an external rotation you automatically force extension and that can put you in a great anatomical position for dead lifts.The exercise itself is simple,you have an iron bar,lift it,draw the sh...
In this video, we learn how to identify common tree problems. If you use too much fertilizer you can find a burn scar that is left on the bark of the tree. You can avoid this by making sure fertilizer spikes are placed away from the tree. Tree splitting is also an obvious sign that a tree is in bad shape and needs to be cut and taken down. A common leaf problem is Pear Slug Damage. A great way to help this to use wood ash on the tree, which will kill the insects that cause this and it's safe ...
