Math Basics


How do you find an equivalent fraction?

An equivalent fraction—also called a “building fraction”—is the reverse of reducing the fraction: Instead of searching for the 1 in the fractional mix that you can reduce, you insert a 1 and build the fractions. For example, find the equivalent fraction for 1/4, using the number 3, multiply the numerator and denominator by 3 (3/3 = 1); 1/4 × 3/3 = 1 × 3/ 4 × 3 = 3/12; therefore the equivalent fraction in this case is 1/4 = 3/12 (the equal sign is used to represent equivalent fractions).


This is a web preview of the "The Handy Math Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App