Subtract 27/15 from 4/18
1st number: 4/18, 2nd number: 1 12/15
4/18 - 27/15 is -71/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
27/15 = 27 × 6/15 × 6 = 162/90 - Subtract the two like fractions:
20/90 - 162/90 = 20 - 162/90 = -142/90 - After reducing the fraction, the answer is -71/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18-27/15 4/18-54/15 4/36-27/15 4/18-27/30 12/18-27/15 4/18-81/15 4/54-27/15 4/18-27/45 20/18-27/15 4/90-27/15 4/18-27/75 28/18-27/15