Subtract 98/32 from 8/70, Solve 8/70

Subtract 98/32 from 8/70

1^st number: 8/70, 2^nd number: 3 2/32

8/70 - 98/32 is -1651/560.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120

Next, find the equivalent fraction of both fractional numbers with denominator 1120
For the 1st fraction, since 70 × 16 = 1120,
8/70 = 8 × 16/70 × 16 = 128/1120
Likewise, for the 2nd fraction, since 32 × 35 = 1120,
98/32 = 98 × 35/32 × 35 = 3430/1120
Subtract the two like fractions:
128/1120 - 3430/1120 = 128 - 3430/1120 = -3302/1120
After reducing the fraction, the answer is -1651/560

MathStep (Works offline)

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