Subtract 21/8 from 48/56
1st number: 48/56, 2nd number: 2 5/8
48/56 - 21/8 is -99/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
48/56 = 48 × 1/56 × 1 = 48/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Subtract the two like fractions:
48/56 - 147/56 = 48 - 147/56 = -99/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/56-21/8 48/56-42/8 48/56-21/16 48/56-63/8 48/56-21/24 48/56-21/40 48/56-21/56