Subtract 42/16 from 5/49, Solve 5/49

Subtract 42/16 from 5/49

1^st number: 5/49, 2^nd number: 2 10/16

5/49 - 42/16 is -989/392.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 16 is 784

Next, find the equivalent fraction of both fractional numbers with denominator 784
For the 1st fraction, since 49 × 16 = 784,
5/49 = 5 × 16/49 × 16 = 80/784
Likewise, for the 2nd fraction, since 16 × 49 = 784,
42/16 = 42 × 49/16 × 49 = 2058/784
Subtract the two like fractions:
80/784 - 2058/784 = 80 - 2058/784 = -1978/784
After reducing the fraction, the answer is -989/392

MathStep (Works offline)

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