Multiplying Fractions If your friend has one-quarter of a pie, and she gives you half, how much of the pie do you have? Or, to put it another way, what's half of one-quarter? Or, to put it into…
A mixed number is a combination of a whole number and a fraction. For example, if you have two whole apples and one half apple, you could describe this as 2 + 1/2 apples, or 21/2 apples.
Writing…
If your friend has half a pie, how many quarter-pies are in that half? Or, to put this into mathematical notation:1/2 ÷ 1/4 = ? To get the answer, flip the divisor (the second fraction) over, and…
Consider the following two fractions:1/2 and 2/4 These fractions are equivalent fractions. They both represent the same amount. One half of an orange is equal to two quarters of an orange. However…
To find the reciprocal of a fraction, flip it over, so that the numerator becomes the denominator and the denominator becomes the numerator. That is:The reciprocal of 4/5 is 5/4 Note that the…
Many American kids don’t think twice about paying $20 for a video game or a sweatshirt. But that $20 would go a very long way in third-world countries. Here’s a look at how far a few dollars can…
A prime number can be divided, without a remainder, only by itself and by 1. For example, 17 can be divided only by 17 and by 1. Some facts:The only even prime number is 2. All other even numbers…
