Subtract 2/3 from 20/56
20/56 - 2/3 is -13/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 3 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168 - Likewise, for the 2nd fraction, since 3 × 56 = 168,
2/3 = 2 × 56/3 × 56 = 112/168 - Subtract the two like fractions:
60/168 - 112/168 = 60 - 112/168 = -52/168 - After reducing the fraction, the answer is -13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-2/3 20/56-4/3 20/56-2/6 60/56-2/3 20/56-6/3 20/56-2/9 20/56-10/3 20/56-2/15 20/56-14/3 20/56-2/21