Subtract 4/8 from 75/63, Solve 1 12/63

Subtract 4/8 from 75/63

1^st number: 1 12/63, 2^nd number: 4/8

75/63 - 4/8 is 29/42.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 63 × 8 = 504,
75/63 = 75 × 8/63 × 8 = 600/504
Likewise, for the 2nd fraction, since 8 × 63 = 504,
4/8 = 4 × 63/8 × 63 = 252/504
Subtract the two like fractions:
600/504 - 252/504 = 600 - 252/504 = 348/504
After reducing the fraction, the answer is 29/42

MathStep (Works offline)

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