Subtract 2/20 from 40/12
1st number: 3 4/12, 2nd number: 2/20
40/12 - 2/20 is 97/30.
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,
2/20 = 2 × 3/20 × 3 = 6/60 - Subtract the two like fractions:
200/60 - 6/60 = 200 - 6/60 = 194/60 - After reducing the fraction, the answer is 97/30
- In mixed form: 37/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-2/20 40/12-4/20 40/24-2/20 40/12-2/40 40/12-6/20 40/36-2/20 40/12-2/60 40/12-10/20 40/60-2/20 40/12-14/20 40/84-2/20