Subtract 10/4 from 4/70, Solve 4/70

Subtract 10/4 from 4/70

1^st number: 4/70, 2^nd number: 2 2/4

4/70 - 10/4 is -171/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 70 × 2 = 140,
4/70 = 4 × 2/70 × 2 = 8/140
Likewise, for the 2nd fraction, since 4 × 35 = 140,
10/4 = 10 × 35/4 × 35 = 350/140
Subtract the two like fractions:
8/140 - 350/140 = 8 - 350/140 = -342/140
After reducing the fraction, the answer is -171/70

MathStep (Works offline)

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