Subtract 16/5 from 15/9
1st number: 1 6/9, 2nd number: 3 1/5
15/9 - 16/5 is -23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
15/9 = 15 × 5/9 × 5 = 75/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
16/5 = 16 × 9/5 × 9 = 144/45 - Subtract the two like fractions:
75/45 - 144/45 = 75 - 144/45 = -69/45 - After reducing the fraction, the answer is -23/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9-16/5 15/9-32/5 15/18-16/5 15/9-16/10 45/9-16/5 15/9-48/5 15/27-16/5 15/9-16/15 75/9-16/5 15/9-80/5 15/45-16/5 15/9-16/25 15/63-16/5 15/9-16/35