Subtract 2/63 from 4/40, Solve 4/40

Subtract 2/63 from 4/40

4/40 - 2/63 is 43/630.

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

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 40 × 63 = 2520,
4/40 = 4 × 63/40 × 63 = 252/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
2/63 = 2 × 40/63 × 40 = 80/2520
Subtract the two like fractions:
252/2520 - 80/2520 = 252 - 80/2520 = 172/2520
After reducing the fraction, the answer is 43/630

MathStep (Works offline)

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