Subtract 90/7 from 27/48, Solve 27/48

Subtract 90/7 from 27/48

1^st number: 27/48, 2^nd number: 12 6/7

27/48 - 90/7 is -1377/112.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 7 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 48 × 7 = 336,
27/48 = 27 × 7/48 × 7 = 189/336
Likewise, for the 2nd fraction, since 7 × 48 = 336,
90/7 = 90 × 48/7 × 48 = 4320/336
Subtract the two like fractions:
189/336 - 4320/336 = 189 - 4320/336 = -4131/336
After reducing the fraction, the answer is -1377/112

MathStep (Works offline)

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