Subtract 81/12 from 28/60
1st number: 28/60, 2nd number: 6 9/12
28/60 - 81/12 is -377/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
28/60 = 28 × 1/60 × 1 = 28/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Subtract the two like fractions:
28/60 - 405/60 = 28 - 405/60 = -377/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60-81/12 28/60-81/24 84/60-81/12 28/60-81/36 28/60-81/60 28/60-81/84