Subtract 2/15 from 18/9
1st number: 2 0/9, 2nd number: 2/15
18/9 - 2/15 is 28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
2/15 = 2 × 3/15 × 3 = 6/45 - Subtract the two like fractions:
90/45 - 6/45 = 90 - 6/45 = 84/45 - After reducing the fraction, the answer is 28/15
- In mixed form: 113/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/9-2/15 18/9-4/15 18/9-2/30 54/9-2/15 18/9-6/15 18/27-2/15 18/9-2/45 90/9-2/15 18/9-10/15 18/45-2/15 18/9-2/75 18/9-14/15 18/63-2/15