Subtract 35/21 from 5/8, Solve 5/8 - 1 14/21 as a fraction

Subtract 35/21 from 5/8

1^st number: 5/8, 2^nd number: 1 14/21

5/8 - 35/21 is -25/24.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
5/8 = 5 × 21/8 × 21 = 105/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
35/21 = 35 × 8/21 × 8 = 280/168
Subtract the two like fractions:
105/168 - 280/168 = 105 - 280/168 = -175/168
After reducing the fraction, the answer is -25/24

MathStep (Works offline)

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