Subtract 3/8 from 18/12
1st number: 1 6/12, 2nd number: 3/8
18/12 - 3/8 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
18/12 = 18 × 2/12 × 2 = 36/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
3/8 = 3 × 3/8 × 3 = 9/24 - Subtract the two like fractions:
36/24 - 9/24 = 36 - 9/24 = 27/24 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-3/8 18/12-6/8 18/24-3/8 18/12-3/16 54/12-3/8 18/12-9/8 18/36-3/8 18/12-3/24 90/12-3/8 18/12-15/8 18/60-3/8 18/12-3/40 18/12-21/8 18/84-3/8 18/12-3/56