Subtract 40/15 from 10/12
1st number: 10/12, 2nd number: 2 10/15
10/12 - 40/15 is -11/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
10/12 = 10 × 5/12 × 5 = 50/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
40/15 = 40 × 4/15 × 4 = 160/60 - Subtract the two like fractions:
50/60 - 160/60 = 50 - 160/60 = -110/60 - After reducing the fraction, the answer is -11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-40/15 10/12-80/15 10/24-40/15 10/12-40/30 30/12-40/15 10/36-40/15 10/12-40/45 50/12-40/15 10/60-40/15 10/12-40/75 70/12-40/15 10/84-40/15