Subtract 27/24 from 42/14, Solve 3 0/14

Subtract 27/24 from 42/14

1^st number: 3 0/14, 2^nd number: 1 3/24

42/14 - 27/24 is 15/8.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 14 × 12 = 168,
42/14 = 42 × 12/14 × 12 = 504/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
27/24 = 27 × 7/24 × 7 = 189/168
Subtract the two like fractions:
504/168 - 189/168 = 504 - 189/168 = 315/168
After reducing the fraction, the answer is 15/8
In mixed form: 17/8

MathStep (Works offline)

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