Subtract 28/20 from 72/3
1st number: 24 0/3, 2nd number: 1 8/20
72/3 - 28/20 is 113/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
72/3 = 72 × 20/3 × 20 = 1440/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
28/20 = 28 × 3/20 × 3 = 84/60 - Subtract the two like fractions:
1440/60 - 84/60 = 1440 - 84/60 = 1356/60 - After reducing the fraction, the answer is 113/5
- In mixed form: 223/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3-56/20 72/6-28/20 72/3-28/40 72/3-84/20 72/9-28/20 72/3-28/60 72/15-28/20 72/21-28/20