Subtract 27/6 from 81/12
1st number: 6 9/12, 2nd number: 4 3/6
81/12 - 27/6 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 6 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
81/12 = 81 × 1/12 × 1 = 81/12 - Likewise, for the 2nd fraction, since 6 × 2 = 12,
27/6 = 27 × 2/6 × 2 = 54/12 - Subtract the two like fractions:
81/12 - 54/12 = 81 - 54/12 = 27/12 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/12-54/6 81/24-27/6 81/12-27/12 81/12-81/6 81/36-27/6 81/12-27/18 81/60-27/6 81/12-27/30 81/84-27/6 81/12-27/42