Subtract 12/45 from 27/15
1st number: 1 12/15, 2nd number: 12/45
27/15 - 12/45 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
27/15 = 27 × 3/15 × 3 = 81/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
12/45 = 12 × 1/45 × 1 = 12/45 - Subtract the two like fractions:
81/45 - 12/45 = 81 - 12/45 = 69/45 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-12/45 27/15-24/45 27/30-12/45 27/15-12/90 81/15-12/45 27/15-36/45 27/45-12/45 27/15-60/45 27/75-12/45 27/15-84/45