Subtract 8/10 from 40/15
1st number: 2 10/15, 2nd number: 8/10
40/15 - 8/10 is 28/15.
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,
40/15 = 40 × 2/15 × 2 = 80/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
8/10 = 8 × 3/10 × 3 = 24/30 - Subtract the two like fractions:
80/30 - 24/30 = 80 - 24/30 = 56/30 - After reducing the fraction, the answer is 28/15
- In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-8/10 40/15-16/10 40/30-8/10 40/15-8/20 40/15-24/10 40/45-8/10 40/15-8/30 40/15-40/10 40/75-8/10 40/15-8/50 40/15-56/10 40/15-8/70