Subtract 4/7 from 80/36, Solve 2 8/36

Subtract 4/7 from 80/36

1^st number: 2 8/36, 2^nd number: 4/7

80/36 - 4/7 is 104/63.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
80/36 = 80 × 7/36 × 7 = 560/252
Likewise, for the 2nd fraction, since 7 × 36 = 252,
4/7 = 4 × 36/7 × 36 = 144/252
Subtract the two like fractions:
560/252 - 144/252 = 560 - 144/252 = 416/252
After reducing the fraction, the answer is 104/63
In mixed form: 141/63

MathStep (Works offline)

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