Subtract 9/56 from 21/2
1st number: 10 1/2, 2nd number: 9/56
21/2 - 9/56 is 579/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 2 × 28 = 56,
21/2 = 21 × 28/2 × 28 = 588/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
9/56 = 9 × 1/56 × 1 = 9/56 - Subtract the two like fractions:
588/56 - 9/56 = 588 - 9/56 = 579/56 - In mixed form: 1019/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-9/56 21/2-18/56 21/4-9/56 63/2-9/56 21/2-27/56 21/6-9/56 21/2-45/56 21/10-9/56 21/2-63/56 21/14-9/56