Subtract 18/12 from 45/8
1st number: 5 5/8, 2nd number: 1 6/12
45/8 - 18/12 is 33/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
45/8 = 45 × 3/8 × 3 = 135/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
18/12 = 18 × 2/12 × 2 = 36/24 - Subtract the two like fractions:
135/24 - 36/24 = 135 - 36/24 = 99/24 - After reducing the fraction, the answer is 33/8
- In mixed form: 41/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-18/12 45/8-36/12 45/16-18/12 45/8-18/24 45/8-54/12 45/24-18/12 45/8-18/36 45/8-90/12 45/40-18/12 45/8-18/60 45/56-18/12 45/8-18/84