Subtract 27/84 from 20/56
20/56 - 27/84 is 1/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 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 84 × 2 = 168,
27/84 = 27 × 2/84 × 2 = 54/168 - Subtract the two like fractions:
60/168 - 54/168 = 60 - 54/168 = 6/168 - After reducing the fraction, the answer is 1/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-27/84 20/56-54/84 60/56-27/84 20/56-81/84