Subtract 30/60 from 20/12
1st number: 1 8/12, 2nd number: 30/60
20/12 - 30/60 is 7/6.
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,
20/12 = 20 × 5/12 × 5 = 100/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60 - Subtract the two like fractions:
100/60 - 30/60 = 100 - 30/60 = 70/60 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-30/60 20/24-30/60 60/12-30/60 20/12-90/60 20/36-30/60 20/60-30/60 20/84-30/60