Subtract 6/63 from 9/8, Solve 1 1/8

Subtract 6/63 from 9/8

1^st number: 1 1/8, 2^nd number: 6/63

9/8 - 6/63 is 173/168.

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

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 8 × 63 = 504,
9/8 = 9 × 63/8 × 63 = 567/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
6/63 = 6 × 8/63 × 8 = 48/504
Subtract the two like fractions:
567/504 - 48/504 = 567 - 48/504 = 519/504
After reducing the fraction, the answer is 173/168
In mixed form: 15/168

MathStep (Works offline)

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