Subtract 35/32 from 15/27, Solve 15/27

Subtract 35/32 from 15/27

1^st number: 15/27, 2^nd number: 1 3/32

15/27 - 35/32 is -155/288.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 32 is 864

Next, find the equivalent fraction of both fractional numbers with denominator 864
For the 1st fraction, since 27 × 32 = 864,
15/27 = 15 × 32/27 × 32 = 480/864
Likewise, for the 2nd fraction, since 32 × 27 = 864,
35/32 = 35 × 27/32 × 27 = 945/864
Subtract the two like fractions:
480/864 - 945/864 = 480 - 945/864 = -465/864
After reducing the fraction, the answer is -155/288

MathStep (Works offline)

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