Subtract 21/7 from 4/75
1st number: 4/75, 2nd number: 3 0/7
4/75 - 21/7 is -221/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
4/75 = 4 × 7/75 × 7 = 28/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
21/7 = 21 × 75/7 × 75 = 1575/525 - Subtract the two like fractions:
28/525 - 1575/525 = 28 - 1575/525 = -1547/525 - After reducing the fraction, the answer is -221/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/75-21/7 4/75-42/7 4/75-21/14 12/75-21/7 4/75-63/7 20/75-21/7 4/75-21/35 28/75-21/7 4/75-21/49