Subtract 54/49 from 90/56, Solve 1 34/56

Subtract 54/49 from 90/56

1^st number: 1 34/56, 2^nd number: 1 5/49

90/56 - 54/49 is 99/196.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 49 is 392

Next, find the equivalent fraction of both fractional numbers with denominator 392
For the 1st fraction, since 56 × 7 = 392,
90/56 = 90 × 7/56 × 7 = 630/392
Likewise, for the 2nd fraction, since 49 × 8 = 392,
54/49 = 54 × 8/49 × 8 = 432/392
Subtract the two like fractions:
630/392 - 432/392 = 630 - 432/392 = 198/392
After reducing the fraction, the answer is 99/196

MathStep (Works offline)

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