Subtract 7/75 from 21/2
1st number: 10 1/2, 2nd number: 7/75
21/2 - 7/75 is 1561/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 2 × 75 = 150,
21/2 = 21 × 75/2 × 75 = 1575/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
7/75 = 7 × 2/75 × 2 = 14/150 - Subtract the two like fractions:
1575/150 - 14/150 = 1575 - 14/150 = 1561/150 - In mixed form: 1061/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-7/75 21/2-14/75 21/4-7/75 63/2-7/75 21/2-21/75 21/6-7/75 21/2-35/75 21/10-7/75 21/2-49/75 21/14-7/75