Subtract 40/54 from 36/56, Solve 36/56

Subtract 40/54 from 36/56

36/56 - 40/54 is -37/378.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 54 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 56 × 27 = 1512,
36/56 = 36 × 27/56 × 27 = 972/1512
Likewise, for the 2nd fraction, since 54 × 28 = 1512,
40/54 = 40 × 28/54 × 28 = 1120/1512
Subtract the two like fractions:
972/1512 - 1120/1512 = 972 - 1120/1512 = -148/1512
After reducing the fraction, the answer is -37/378

MathStep (Works offline)

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