Subtract 15/18 from 12/3
1st number: 4 0/3, 2nd number: 15/18
12/3 - 15/18 is 19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
12/3 = 12 × 6/3 × 6 = 72/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
15/18 = 15 × 1/18 × 1 = 15/18 - Subtract the two like fractions:
72/18 - 15/18 = 72 - 15/18 = 57/18 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-15/18 12/3-30/18 12/6-15/18 12/3-15/36 36/3-15/18 12/3-45/18 12/9-15/18 12/3-15/54 60/3-15/18 12/3-75/18 12/15-15/18 12/3-15/90 84/3-15/18 12/21-15/18