Subtract 5/30 from 4/63, Solve 4/63

Subtract 5/30 from 4/63

4/63 - 5/30 is -13/126.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
4/63 = 4 × 10/63 × 10 = 40/630
Likewise, for the 2nd fraction, since 30 × 21 = 630,
5/30 = 5 × 21/30 × 21 = 105/630
Subtract the two like fractions:
40/630 - 105/630 = 40 - 105/630 = -65/630
After reducing the fraction, the answer is -13/126

MathStep (Works offline)

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