Subtract 25/15 from 27/14, Solve 1 13/14

Subtract 25/15 from 27/14

1^st number: 1 13/14, 2^nd number: 1 10/15

27/14 - 25/15 is 11/42.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 14 × 15 = 210,
27/14 = 27 × 15/14 × 15 = 405/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
25/15 = 25 × 14/15 × 14 = 350/210
Subtract the two like fractions:
405/210 - 350/210 = 405 - 350/210 = 55/210
After reducing the fraction, the answer is 11/42

MathStep (Works offline)

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