Subtract 10/8 from 40/12
1st number: 3 4/12, 2nd number: 1 2/8
40/12 - 10/8 is 25/12.
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,
40/12 = 40 × 2/12 × 2 = 80/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
10/8 = 10 × 3/8 × 3 = 30/24 - Subtract the two like fractions:
80/24 - 30/24 = 80 - 30/24 = 50/24 - After reducing the fraction, the answer is 25/12
- In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-10/8 40/12-20/8 40/24-10/8 40/12-10/16 40/12-30/8 40/36-10/8 40/12-10/24 40/12-50/8 40/60-10/8 40/12-10/40 40/12-70/8 40/84-10/8 40/12-10/56