Subtract 98/80 from 5/56, Solve 5/56

Subtract 98/80 from 5/56

1^st number: 5/56, 2^nd number: 1 18/80

5/56 - 98/80 is -159/140.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 56 × 10 = 560,
5/56 = 5 × 10/56 × 10 = 50/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
98/80 = 98 × 7/80 × 7 = 686/560
Subtract the two like fractions:
50/560 - 686/560 = 50 - 686/560 = -636/560
After reducing the fraction, the answer is -159/140

MathStep (Works offline)

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