Subtract 30/75 from 21/14
1st number: 1 7/14, 2nd number: 30/75
21/14 - 30/75 is 11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 14 × 75 = 1050,
21/14 = 21 × 75/14 × 75 = 1575/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
30/75 = 30 × 14/75 × 14 = 420/1050 - Subtract the two like fractions:
1575/1050 - 420/1050 = 1575 - 420/1050 = 1155/1050 - After reducing the fraction, the answer is 11/10
- In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-30/75 21/14-60/75 21/28-30/75 63/14-30/75 21/14-90/75 21/42-30/75 21/70-30/75 21/98-30/75