Subtract 9/60 from 75/21
1st number: 3 12/21, 2nd number: 9/60
75/21 - 9/60 is 479/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
75/21 = 75 × 20/21 × 20 = 1500/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
9/60 = 9 × 7/60 × 7 = 63/420 - Subtract the two like fractions:
1500/420 - 63/420 = 1500 - 63/420 = 1437/420 - After reducing the fraction, the answer is 479/140
- In mixed form: 359/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21-18/60 75/42-9/60 75/21-27/60 75/63-9/60 75/21-45/60 75/21-63/60