Subtract 81/5 from 16/12
1st number: 1 4/12, 2nd number: 16 1/5
16/12 - 81/5 is -223/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
16/12 = 16 × 5/12 × 5 = 80/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
81/5 = 81 × 12/5 × 12 = 972/60 - Subtract the two like fractions:
80/60 - 972/60 = 80 - 972/60 = -892/60 - After reducing the fraction, the answer is -223/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/12-81/5 16/24-81/5 16/12-81/10 48/12-81/5 16/36-81/5 16/12-81/15 80/12-81/5 16/60-81/5 16/12-81/25 16/84-81/5 16/12-81/35