Subtract 21/49 from 50/8, Solve 6 2/8

Subtract 21/49 from 50/8

1^st number: 6 2/8, 2^nd number: 21/49

50/8 - 21/49 is 163/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 49 is 392

Next, find the equivalent fraction of both fractional numbers with denominator 392
For the 1st fraction, since 8 × 49 = 392,
50/8 = 50 × 49/8 × 49 = 2450/392
Likewise, for the 2nd fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392
Subtract the two like fractions:
2450/392 - 168/392 = 2450 - 168/392 = 2282/392
After reducing the fraction, the answer is 163/28
In mixed form: 523/28

MathStep (Works offline)

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