Subtract 14/21 from 7/50, Solve 7/50

Subtract 14/21 from 7/50

7/50 - 14/21 is -79/150.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 50 × 21 = 1050,
7/50 = 7 × 21/50 × 21 = 147/1050
Likewise, for the 2nd fraction, since 21 × 50 = 1050,
14/21 = 14 × 50/21 × 50 = 700/1050
Subtract the two like fractions:
147/1050 - 700/1050 = 147 - 700/1050 = -553/1050
After reducing the fraction, the answer is -79/150

MathStep (Works offline)

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