Subtract 18/9 from 4/15
1st number: 4/15, 2nd number: 2 0/9
4/15 - 18/9 is -26/15.
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,
4/15 = 4 × 3/15 × 3 = 12/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
18/9 = 18 × 5/9 × 5 = 90/45 - Subtract the two like fractions:
12/45 - 90/45 = 12 - 90/45 = -78/45 - After reducing the fraction, the answer is -26/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-18/9 4/15-36/9 4/30-18/9 12/15-18/9 4/15-54/9 4/45-18/9 4/15-18/27 20/15-18/9 4/15-90/9 4/75-18/9 4/15-18/45 28/15-18/9 4/15-18/63