Subtract 15/10 from 3/9
1st number: 3/9, 2nd number: 1 5/10
3/9 - 15/10 is -7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
3/9 = 3 × 10/9 × 10 = 30/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
15/10 = 15 × 9/10 × 9 = 135/90 - Subtract the two like fractions:
30/90 - 135/90 = 30 - 135/90 = -105/90 - After reducing the fraction, the answer is -7/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-15/10 3/9-30/10 3/18-15/10 3/9-15/20 3/9-45/10 3/27-15/10 3/9-15/30 15/9-15/10 3/9-75/10 3/45-15/10 3/9-15/50 21/9-15/10 3/63-15/10 3/9-15/70