Subtract 56/18 from 1/63, Solve 1/63

Subtract 56/18 from 1/63

1^st number: 1/63, 2^nd number: 3 2/18

1/63 - 56/18 is -65/21.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
1/63 = 1 × 2/63 × 2 = 2/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
56/18 = 56 × 7/18 × 7 = 392/126
Subtract the two like fractions:
2/126 - 392/126 = 2 - 392/126 = -390/126
After reducing the fraction, the answer is -65/21

MathStep (Works offline)

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