Subtract 27/8 from 60/63, Solve 60/63

Subtract 27/8 from 60/63

1^st number: 60/63, 2^nd number: 3 3/8

60/63 - 27/8 is -407/168.

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

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
60/63 = 60 × 8/63 × 8 = 480/504
Likewise, for the 2nd fraction, since 8 × 63 = 504,
27/8 = 27 × 63/8 × 63 = 1701/504
Subtract the two like fractions:
480/504 - 1701/504 = 480 - 1701/504 = -1221/504
After reducing the fraction, the answer is -407/168

MathStep (Works offline)

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