Subtract 49/63 from 6/8, Solve 6/8

Subtract 49/63 from 6/8

6/8 - 49/63 is -1/36.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
6/8 = 6 × 63/8 × 63 = 378/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
49/63 = 49 × 8/63 × 8 = 392/504
Subtract the two like fractions:
378/504 - 392/504 = 378 - 392/504 = -14/504
After reducing the fraction, the answer is -1/36

MathStep (Works offline)

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