Subtract 12/27 from 81/15
1st number: 5 6/15, 2nd number: 12/27
81/15 - 12/27 is 223/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
81/15 = 81 × 9/15 × 9 = 729/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
12/27 = 12 × 5/27 × 5 = 60/135 - Subtract the two like fractions:
729/135 - 60/135 = 729 - 60/135 = 669/135 - After reducing the fraction, the answer is 223/45
- In mixed form: 443/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/15-24/27 81/30-12/27 81/15-12/54 81/15-36/27 81/45-12/27 81/15-12/81 81/15-60/27 81/75-12/27 81/15-84/27