Subtract 15/10 from 3/15
1st number: 3/15, 2nd number: 1 5/10
3/15 - 15/10 is -13/10.
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,
15/10 = 15 × 3/10 × 3 = 45/30 - Subtract the two like fractions:
6/30 - 45/30 = 6 - 45/30 = -39/30 - After reducing the fraction, the answer is -13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-15/10 3/15-30/10 3/30-15/10 3/15-15/20 9/15-15/10 3/15-45/10 3/45-15/10 3/15-15/30 3/15-75/10 3/75-15/10 3/15-15/50 21/15-15/10 3/15-15/70