Subtract 10/12 from 81/10
1st number: 8 1/10, 2nd number: 10/12
81/10 - 10/12 is 109/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
81/10 = 81 × 6/10 × 6 = 486/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
10/12 = 10 × 5/12 × 5 = 50/60 - Subtract the two like fractions:
486/60 - 50/60 = 486 - 50/60 = 436/60 - After reducing the fraction, the answer is 109/15
- In mixed form: 74/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/10-20/12 81/20-10/12 81/10-10/24 81/10-30/12 81/30-10/12 81/10-10/36 81/10-50/12 81/50-10/12 81/10-10/60 81/10-70/12 81/70-10/12 81/10-10/84