Subtract 21/10 from 72/3
1st number: 24 0/3, 2nd number: 2 1/10
72/3 - 21/10 is 219/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
72/3 = 72 × 10/3 × 10 = 720/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Subtract the two like fractions:
720/30 - 63/30 = 720 - 63/30 = 657/30 - After reducing the fraction, the answer is 219/10
- In mixed form: 219/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3-42/10 72/6-21/10 72/3-21/20 72/3-63/10 72/9-21/10 72/3-21/30 72/15-21/10 72/3-21/50 72/21-21/10 72/3-21/70