Subtract 30/4 from 2/63, Solve 2/63

Subtract 30/4 from 2/63

1^st number: 2/63, 2^nd number: 7 2/4

2/63 - 30/4 is -941/126.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 63 × 4 = 252,
2/63 = 2 × 4/63 × 4 = 8/252
Likewise, for the 2nd fraction, since 4 × 63 = 252,
30/4 = 30 × 63/4 × 63 = 1890/252
Subtract the two like fractions:
8/252 - 1890/252 = 8 - 1890/252 = -1882/252
After reducing the fraction, the answer is -941/126

MathStep (Works offline)

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