Subtract 98/63 from 10/8, Solve 1 2/8

Subtract 98/63 from 10/8

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

10/8 - 98/63 is -11/36.

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,
10/8 = 10 × 63/8 × 63 = 630/504
Likewise, for the 2nd fraction, since 63 × 8 = 504,
98/63 = 98 × 8/63 × 8 = 784/504
Subtract the two like fractions:
630/504 - 784/504 = 630 - 784/504 = -154/504
After reducing the fraction, the answer is -11/36

MathStep (Works offline)

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