Subtract 5/12 from 81/5
1st number: 16 1/5, 2nd number: 5/12
81/5 - 5/12 is 947/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
81/5 = 81 × 12/5 × 12 = 972/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
5/12 = 5 × 5/12 × 5 = 25/60 - Subtract the two like fractions:
972/60 - 25/60 = 972 - 25/60 = 947/60 - In mixed form: 1547/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5-10/12 81/10-5/12 81/5-5/24 81/5-15/12 81/15-5/12 81/5-5/36 81/5-25/12 81/25-5/12 81/5-5/60 81/5-35/12 81/35-5/12 81/5-5/84