Subtract 8/35 from 72/63, Solve 1 9/63

Subtract 8/35 from 72/63

1^st number: 1 9/63, 2^nd number: 8/35

72/63 - 8/35 is 32/35.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315
Likewise, for the 2nd fraction, since 35 × 9 = 315,
8/35 = 8 × 9/35 × 9 = 72/315
Subtract the two like fractions:
360/315 - 72/315 = 360 - 72/315 = 288/315
After reducing the fraction, the answer is 32/35

MathStep (Works offline)

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