Subtract 63/16 from 12/75, Solve 12/75

Subtract 63/16 from 12/75

1^st number: 12/75, 2^nd number: 3 15/16

12/75 - 63/16 is -1511/400.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 16 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 75 × 16 = 1200,
12/75 = 12 × 16/75 × 16 = 192/1200
Likewise, for the 2nd fraction, since 16 × 75 = 1200,
63/16 = 63 × 75/16 × 75 = 4725/1200
Subtract the two like fractions:
192/1200 - 4725/1200 = 192 - 4725/1200 = -4533/1200
After reducing the fraction, the answer is -1511/400

MathStep (Works offline)

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