Subtract 21/49 from 70/56
1st number: 1 14/56, 2nd number: 21/49
70/56 - 21/49 is 23/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 56 × 7 = 392,
70/56 = 70 × 7/56 × 7 = 490/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Subtract the two like fractions:
490/392 - 168/392 = 490 - 168/392 = 322/392 - After reducing the fraction, the answer is 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56-42/49 70/56-21/98 70/56-63/49