Subtract 8/20 from 40/12
1st number: 3 4/12, 2nd number: 8/20
40/12 - 8/20 is 44/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
8/20 = 8 × 3/20 × 3 = 24/60 - Subtract the two like fractions:
200/60 - 24/60 = 200 - 24/60 = 176/60 - After reducing the fraction, the answer is 44/15
- In mixed form: 214/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-8/20 40/12-16/20 40/24-8/20 40/12-8/40 40/12-24/20 40/36-8/20 40/12-8/60 40/12-40/20 40/60-8/20 40/12-56/20 40/84-8/20