Subtract 7/12 from 40/20
1st number: 2 0/20, 2nd number: 7/12
40/20 - 7/12 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
7/12 = 7 × 5/12 × 5 = 35/60 - Subtract the two like fractions:
120/60 - 35/60 = 120 - 35/60 = 85/60 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20-7/12 40/20-14/12 40/20-7/24 40/20-21/12 40/60-7/12 40/20-7/36 40/20-35/12 40/20-7/60 40/20-49/12 40/20-7/84