Subtract 60/40 from 16/63, Solve 16/63

Subtract 60/40 from 16/63

1^st number: 16/63, 2^nd number: 1 20/40

16/63 - 60/40 is -157/126.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 63 × 40 = 2520,
16/63 = 16 × 40/63 × 40 = 640/2520
Likewise, for the 2nd fraction, since 40 × 63 = 2520,
60/40 = 60 × 63/40 × 63 = 3780/2520
Subtract the two like fractions:
640/2520 - 3780/2520 = 640 - 3780/2520 = -3140/2520
After reducing the fraction, the answer is -157/126

MathStep (Works offline)

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