Subtract 18/25 from 27/15
1st number: 1 12/15, 2nd number: 18/25
27/15 - 18/25 is 27/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
27/15 = 27 × 5/15 × 5 = 135/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
18/25 = 18 × 3/25 × 3 = 54/75 - Subtract the two like fractions:
135/75 - 54/75 = 135 - 54/75 = 81/75 - After reducing the fraction, the answer is 27/25
- In mixed form: 12/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-18/25 27/15-36/25 27/30-18/25 27/15-18/50 81/15-18/25 27/15-54/25 27/45-18/25 27/15-18/75 27/15-90/25 27/75-18/25