Subtract 10/6 from 15/63, Solve 15/63

Subtract 10/6 from 15/63

1^st number: 15/63, 2^nd number: 1 4/6

15/63 - 10/6 is -10/7.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 6 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
15/63 = 15 × 2/63 × 2 = 30/126
Likewise, for the 2nd fraction, since 6 × 21 = 126,
10/6 = 10 × 21/6 × 21 = 210/126
Subtract the two like fractions:
30/126 - 210/126 = 30 - 210/126 = -180/126
After reducing the fraction, the answer is -10/7

MathStep (Works offline)

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