Subtract 8/60 from 21/12
1st number: 1 9/12, 2nd number: 8/60
21/12 - 8/60 is 97/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
8/60 = 8 × 1/60 × 1 = 8/60 - Subtract the two like fractions:
105/60 - 8/60 = 105 - 8/60 = 97/60 - In mixed form: 137/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12-8/60 21/12-16/60 21/24-8/60 63/12-8/60 21/12-24/60 21/36-8/60 21/12-40/60 21/60-8/60 21/12-56/60 21/84-8/60