Subtract 21/60 from 30/12
1st number: 2 6/12, 2nd number: 21/60
30/12 - 21/60 is 43/20.
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,
30/12 = 30 × 5/12 × 5 = 150/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Subtract the two like fractions:
150/60 - 21/60 = 150 - 21/60 = 129/60 - After reducing the fraction, the answer is 43/20
- In mixed form: 23/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-21/60 30/12-42/60 30/24-21/60 90/12-21/60 30/12-63/60 30/36-21/60 30/60-21/60 30/84-21/60