Subtract 7/72 from 40/15
1st number: 2 10/15, 2nd number: 7/72
40/15 - 7/72 is 185/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
40/15 = 40 × 24/15 × 24 = 960/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Subtract the two like fractions:
960/360 - 35/360 = 960 - 35/360 = 925/360 - After reducing the fraction, the answer is 185/72
- In mixed form: 241/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-7/72 40/15-14/72 40/30-7/72 40/15-21/72 40/45-7/72 40/15-35/72 40/75-7/72 40/15-49/72