Subtract 72/56 from 1/6, Solve 1/6 - 1 16/56 as a fraction

Subtract 72/56 from 1/6

1^st number: 1/6, 2^nd number: 1 16/56

1/6 - 72/56 is -47/42.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 6 × 28 = 168,
1/6 = 1 × 28/6 × 28 = 28/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
72/56 = 72 × 3/56 × 3 = 216/168
Subtract the two like fractions:
28/168 - 216/168 = 28 - 216/168 = -188/168
After reducing the fraction, the answer is -47/42

MathStep (Works offline)

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