Subtract 15/9 from 16/15
1st number: 1 1/15, 2nd number: 1 6/9
16/15 - 15/9 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
16/15 = 16 × 3/15 × 3 = 48/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
15/9 = 15 × 5/9 × 5 = 75/45 - Subtract the two like fractions:
48/45 - 75/45 = 48 - 75/45 = -27/45 - 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: 32/15-15/9 16/15-30/9 16/30-15/9 16/15-15/18 48/15-15/9 16/15-45/9 16/45-15/9 16/15-15/27 80/15-15/9 16/15-75/9 16/75-15/9 16/15-15/45 16/15-15/63