Subtract 15/12 from 12/3
1st number: 4 0/3, 2nd number: 1 3/12
12/3 - 15/12 is 11/4.
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,
12/3 = 12 × 4/3 × 4 = 48/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
15/12 = 15 × 1/12 × 1 = 15/12 - Subtract the two like fractions:
48/12 - 15/12 = 48 - 15/12 = 33/12 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-15/12 12/3-30/12 12/6-15/12 12/3-15/24 36/3-15/12 12/3-45/12 12/9-15/12 12/3-15/36 60/3-15/12 12/3-75/12 12/15-15/12 12/3-15/60 84/3-15/12 12/21-15/12 12/3-15/84