Subtract 24/20 from 27/14, Solve 1 13/14

Subtract 24/20 from 27/14

1^st number: 1 13/14, 2^nd number: 1 4/20

27/14 - 24/20 is 51/70.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 14 × 10 = 140,
27/14 = 27 × 10/14 × 10 = 270/140
Likewise, for the 2nd fraction, since 20 × 7 = 140,
24/20 = 24 × 7/20 × 7 = 168/140
Subtract the two like fractions:
270/140 - 168/140 = 270 - 168/140 = 102/140
After reducing the fraction, the answer is 51/70

MathStep (Works offline)

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