Subtract 10/15 from 40/12
1st number: 3 4/12, 2nd number: 10/15
40/12 - 10/15 is 8/3.
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,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
10/15 = 10 × 4/15 × 4 = 40/60 - Subtract the two like fractions:
200/60 - 40/60 = 200 - 40/60 = 160/60 - After reducing the fraction, the answer is 8/3
- In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-10/15 40/12-20/15 40/24-10/15 40/12-10/30 40/12-30/15 40/36-10/15 40/12-10/45 40/12-50/15 40/60-10/15 40/12-10/75 40/12-70/15 40/84-10/15