Subtract 48/27 from 21/96, Solve 21/96

Subtract 48/27 from 21/96

1^st number: 21/96, 2^nd number: 1 21/27

21/96 - 48/27 is -449/288.

Find the least common denominator or LCM of the two denominators:
LCM of 96 and 27 is 864

Next, find the equivalent fraction of both fractional numbers with denominator 864
For the 1st fraction, since 96 × 9 = 864,
21/96 = 21 × 9/96 × 9 = 189/864
Likewise, for the 2nd fraction, since 27 × 32 = 864,
48/27 = 48 × 32/27 × 32 = 1536/864
Subtract the two like fractions:
189/864 - 1536/864 = 189 - 1536/864 = -1347/864
After reducing the fraction, the answer is -449/288

MathStep (Works offline)

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