Subtract 70/27 from 8/12, Solve 8/12

Subtract 70/27 from 8/12

1^st number: 8/12, 2^nd number: 2 16/27

8/12 - 70/27 is -52/27.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
8/12 = 8 × 9/12 × 9 = 72/108
Likewise, for the 2nd fraction, since 27 × 4 = 108,
70/27 = 70 × 4/27 × 4 = 280/108
Subtract the two like fractions:
72/108 - 280/108 = 72 - 280/108 = -208/108
After reducing the fraction, the answer is -52/27

MathStep (Works offline)

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