Subtract 35/84 from 20/56
20/56 - 35/84 is -5/84.
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,
35/84 = 35 × 2/84 × 2 = 70/168 - Subtract the two like fractions:
60/168 - 70/168 = 60 - 70/168 = -10/168 - After reducing the fraction, the answer is -5/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-35/84 20/56-70/84 60/56-35/84