Subtract 20/12 from 36/3
1st number: 12 0/3, 2nd number: 1 8/12
36/3 - 20/12 is 31/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
36/3 = 36 × 4/3 × 4 = 144/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
20/12 = 20 × 1/12 × 1 = 20/12 - Subtract the two like fractions:
144/12 - 20/12 = 144 - 20/12 = 124/12 - After reducing the fraction, the answer is 31/3
- In mixed form: 101/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3-20/12 36/3-40/12 36/6-20/12 36/3-20/24 36/3-60/12 36/9-20/12 36/3-20/36 36/15-20/12 36/3-20/60 36/21-20/12 36/3-20/84