Subtract 14/50 from 12/81, Solve 12/81

Subtract 14/50 from 12/81

12/81 - 14/50 is -89/675.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050

Next, find the equivalent fraction of both fractional numbers with denominator 4050
For the 1st fraction, since 81 × 50 = 4050,
12/81 = 12 × 50/81 × 50 = 600/4050
Likewise, for the 2nd fraction, since 50 × 81 = 4050,
14/50 = 14 × 81/50 × 81 = 1134/4050
Subtract the two like fractions:
600/4050 - 1134/4050 = 600 - 1134/4050 = -534/4050
After reducing the fraction, the answer is -89/675

MathStep (Works offline)

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