Subtract 3/18 from 18/12
1st number: 1 6/12, 2nd number: 3/18
18/12 - 3/18 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
18/12 = 18 × 3/12 × 3 = 54/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
3/18 = 3 × 2/18 × 2 = 6/36 - Subtract the two like fractions:
54/36 - 6/36 = 54 - 6/36 = 48/36 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-3/18 18/12-6/18 18/24-3/18 18/12-3/36 54/12-3/18 18/12-9/18 18/36-3/18 18/12-3/54 90/12-3/18 18/12-15/18 18/60-3/18 18/12-3/90 18/12-21/18 18/84-3/18