Use cross multiplication to determine if two fractions are equivalent.If you multiply or divide by the top of the fraction, you must do the same to the bottom.Adding or subtracting does not work for finding an equivalent fraction.You can multiply or divide to find an equivalent fraction.Equivalent fractions may look different, but they have the same value.In these cases you can use cross multiplication to compare the two fractions. However, sometimes it's difficult to tell which is bigger just by looking at two fractions. Then the fraction with the larger numerator is bigger. It's also easy to tell if the denominators are the same. the equivalent fraction of both fractional numbers with denominator 12 For the. For example, after working with fractions for a while, you probably know that ½ is bigger than ¼. Compare 3/4 and 5/6 3 4 is smaller than 5 6 Steps for comparing fractions. How can you tell if one fraction is bigger than another? You are multiplying across the two fractions like the pink "X" shown in the example below. If you get confused on what to do, just remember the name of the formula: "cross multiply". It's a bit confusing when written out, but you can see from the formula that it's fairly simple to work out the math. This formula says that if the numerator of one fraction times the denominator of the other fraction equals the denominator of the first fraction times the numerator of the second fraction, then the fractions are equivalent. There is a formula you can use to determine if two fractions are equivalent. You can also divide the top and bottom by the same number to create an equivalent fraction as shown above. The two fractions have the same value and are equivalent. Since we multiplied the fraction by 1 or 2/2, the value doesn't change. So as long as we multiply or divide both the top and the bottom of a fraction by the same number, it's just the same as multiplying or dividing by 1 and we won't change the value of the fraction. We also know that when you have the same numerator and denominator in a fraction, it always equals 1. We know from multiplication and division that when you multiply or divide a number by 1 you get the same number. You can see from the picture below that they both have the same value.Įquivalent fractions can be found by multiplying or dividing both the numerator and the denominator by the same number. 8/10 is equivalent to 4/5 once 4 x 2 8 and 5 x 2 10. To find equivalent fractions, you just need to multiply the numerator and denominator of that reduced fraction (4/5) by the same interger number, ie, multiply by 2, 3, 4. These fractions have the same value, but use different numbers. The fraction 4/5 is equal to 4/5 when reduced to lowest terms (equivalent fractions definition). Let's take a look at a simple example of equivalent fractions: the fractions ½ and 2/4. When fractions have different numbers in them, but have the same value, they are called equivalent fractions.
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