Subtract 72/10 from 40/3
1st number: 13 1/3, 2nd number: 7 2/10
40/3 - 72/10 is 92/15.
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,
40/3 = 40 × 10/3 × 10 = 400/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
72/10 = 72 × 3/10 × 3 = 216/30 - Subtract the two like fractions:
400/30 - 216/30 = 400 - 216/30 = 184/30 - After reducing the fraction, the answer is 92/15
- In mixed form: 62/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3-72/10 40/6-72/10 40/3-72/20 40/9-72/10 40/3-72/30 40/15-72/10 40/3-72/50 40/21-72/10 40/3-72/70