Subtract 27/56 from 10/40, Solve 10/40

Subtract 27/56 from 10/40

10/40 - 27/56 is -13/56.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 40 × 7 = 280,
10/40 = 10 × 7/40 × 7 = 70/280
Likewise, for the 2nd fraction, since 56 × 5 = 280,
27/56 = 27 × 5/56 × 5 = 135/280
Subtract the two like fractions:
70/280 - 135/280 = 70 - 135/280 = -65/280
After reducing the fraction, the answer is -13/56

MathStep (Works offline)

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