Subtract 70/35 from 4/12, Solve 4/12

Subtract 70/35 from 4/12

1^st number: 4/12, 2^nd number: 2 0/35

4/12 - 70/35 is -5/3.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
4/12 = 4 × 35/12 × 35 = 140/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
70/35 = 70 × 12/35 × 12 = 840/420
Subtract the two like fractions:
140/420 - 840/420 = 140 - 840/420 = -700/420
After reducing the fraction, the answer is -5/3

MathStep (Works offline)

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