Subtract 21/8 from 48/7
1st number: 6 6/7, 2nd number: 2 5/8
48/7 - 21/8 is 237/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
48/7 = 48 × 8/7 × 8 = 384/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Subtract the two like fractions:
384/56 - 147/56 = 384 - 147/56 = 237/56 - In mixed form: 413/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/7-21/8 48/7-42/8 48/14-21/8 48/7-21/16 48/7-63/8 48/21-21/8 48/7-21/24 48/35-21/8 48/7-21/40 48/49-21/8 48/7-21/56