Subtract 27/18 from 4/15
1st number: 4/15, 2nd number: 1 9/18
4/15 - 27/18 is -37/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
4/15 = 4 × 6/15 × 6 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
27/18 = 27 × 5/18 × 5 = 135/90 - Subtract the two like fractions:
24/90 - 135/90 = 24 - 135/90 = -111/90 - After reducing the fraction, the answer is -37/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-27/18 4/15-54/18 4/30-27/18 4/15-27/36 12/15-27/18 4/15-81/18 4/45-27/18 4/15-27/54 20/15-27/18 4/75-27/18 4/15-27/90 28/15-27/18