Subtract 72/60 from 21/6
1st number: 3 3/6, 2nd number: 1 12/60
21/6 - 72/60 is 23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
21/6 = 21 × 10/6 × 10 = 210/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
72/60 = 72 × 1/60 × 1 = 72/60 - Subtract the two like fractions:
210/60 - 72/60 = 210 - 72/60 = 138/60 - After reducing the fraction, the answer is 23/10
- In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-72/60 21/12-72/60 63/6-72/60 21/18-72/60 21/30-72/60 21/42-72/60