Subtract 15/12 from 40/8
1st number: 5 0/8, 2nd number: 1 3/12
40/8 - 15/12 is 15/4.
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,
40/8 = 40 × 3/8 × 3 = 120/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
15/12 = 15 × 2/12 × 2 = 30/24 - Subtract the two like fractions:
120/24 - 30/24 = 120 - 30/24 = 90/24 - After reducing the fraction, the answer is 15/4
- In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8-15/12 40/8-30/12 40/16-15/12 40/8-15/24 40/8-45/12 40/24-15/12 40/8-15/36 40/8-75/12 40/8-15/60 40/56-15/12 40/8-15/84