Subtract 8/10 from 3/15
3/15 - 8/10 is -3/5.
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,
3/15 = 3 × 2/15 × 2 = 6/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
8/10 = 8 × 3/10 × 3 = 24/30 - Subtract the two like fractions:
6/30 - 24/30 = 6 - 24/30 = -18/30 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-8/10 3/15-16/10 3/30-8/10 3/15-8/20 9/15-8/10 3/15-24/10 3/45-8/10 3/15-8/30 3/15-40/10 3/75-8/10 3/15-8/50 21/15-8/10 3/15-56/10 3/15-8/70