Subtract 70/28 from 20/56
1st number: 20/56, 2nd number: 2 14/28
20/56 - 70/28 is -15/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
20/56 = 20 × 1/56 × 1 = 20/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
70/28 = 70 × 2/28 × 2 = 140/56 - Subtract the two like fractions:
20/56 - 140/56 = 20 - 140/56 = -120/56 - After reducing the fraction, the answer is -15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-70/28 20/56-70/56 60/56-70/28 20/56-70/84