Subtract 2/10 from 72/15
1st number: 4 12/15, 2nd number: 2/10
72/15 - 2/10 is 23/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
2/10 = 2 × 3/10 × 3 = 6/30 - Subtract the two like fractions:
144/30 - 6/30 = 144 - 6/30 = 138/30 - After reducing the fraction, the answer is 23/5
- In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-4/10 72/30-2/10 72/15-2/20 72/15-6/10 72/45-2/10 72/15-2/30 72/75-2/10 72/15-2/50 72/15-14/10 72/15-2/70