Subtract 36/7 from 40/15
1st number: 2 10/15, 2nd number: 5 1/7
40/15 - 36/7 is -52/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
40/15 = 40 × 7/15 × 7 = 280/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
36/7 = 36 × 15/7 × 15 = 540/105 - Subtract the two like fractions:
280/105 - 540/105 = 280 - 540/105 = -260/105 - After reducing the fraction, the answer is -52/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-36/7 40/15-72/7 40/30-36/7 40/15-36/14 40/45-36/7 40/15-36/21 40/75-36/7 40/15-36/35 40/15-36/49