Subtract 21/48 from 75/21
1st number: 3 12/21, 2nd number: 21/48
75/21 - 21/48 is 351/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
75/21 = 75 × 16/21 × 16 = 1200/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Subtract the two like fractions:
1200/336 - 147/336 = 1200 - 147/336 = 1053/336 - After reducing the fraction, the answer is 351/112
- In mixed form: 315/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21-42/48 75/42-21/48 75/21-21/96 75/21-63/48 75/63-21/48