Subtract 3/81 from 10/50, Solve 10/50

Subtract 3/81 from 10/50

10/50 - 3/81 is 22/135.

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

Next, find the equivalent fraction of both fractional numbers with denominator 4050
For the 1st fraction, since 50 × 81 = 4050,
10/50 = 10 × 81/50 × 81 = 810/4050
Likewise, for the 2nd fraction, since 81 × 50 = 4050,
3/81 = 3 × 50/81 × 50 = 150/4050
Subtract the two like fractions:
810/4050 - 150/4050 = 810 - 150/4050 = 660/4050
After reducing the fraction, the answer is 22/135

MathStep (Works offline)

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