Subtract 20/84 from 10/36, Solve 10/36

Subtract 20/84 from 10/36

10/36 - 20/84 is 5/126.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
10/36 = 10 × 7/36 × 7 = 70/252
Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252
Subtract the two like fractions:
70/252 - 60/252 = 70 - 60/252 = 10/252
After reducing the fraction, the answer is 5/126

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad