Subtract 7/16 from 20/56
20/56 - 7/16 is -9/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 56 × 2 = 112,
20/56 = 20 × 2/56 × 2 = 40/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
7/16 = 7 × 7/16 × 7 = 49/112 - Subtract the two like fractions:
40/112 - 49/112 = 40 - 49/112 = -9/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-7/16 20/56-14/16 20/56-7/32 60/56-7/16 20/56-21/16 20/56-7/48 20/56-35/16 20/56-7/80 20/56-49/16