Subtract 25/20 from 40/12
1st number: 3 4/12, 2nd number: 1 5/20
40/12 - 25/20 is 25/12.
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,
25/20 = 25 × 3/20 × 3 = 75/60 - Subtract the two like fractions:
200/60 - 75/60 = 200 - 75/60 = 125/60 - 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: 80/12-25/20 40/12-50/20 40/24-25/20 40/12-25/40 40/12-75/20 40/36-25/20 40/12-25/60 40/60-25/20 40/84-25/20