Subtract 5/40 from 10/63, Solve 10/63

Subtract 5/40 from 10/63

10/63 - 5/40 is 17/504.

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,
10/63 = 10 × 40/63 × 40 = 400/2520
Likewise, for the 2nd fraction, since 40 × 63 = 2520,
5/40 = 5 × 63/40 × 63 = 315/2520
Subtract the two like fractions:
400/2520 - 315/2520 = 400 - 315/2520 = 85/2520
After reducing the fraction, the answer is 17/504

MathStep (Works offline)

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