Subtract 84/56 from 21/14
1st number: 1 7/14, 2nd number: 1 28/56
21/14 - 84/56 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
21/14 = 21 × 4/14 × 4 = 84/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
84/56 = 84 × 1/56 × 1 = 84/56 - Subtract the two like fractions:
84/56 - 84/56 = 84 - 84/56 = 0/56 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-84/56 21/28-84/56 63/14-84/56 21/42-84/56 21/70-84/56 21/98-84/56