Subtract 27/20 from 40/12
1st number: 3 4/12, 2nd number: 1 7/20
40/12 - 27/20 is 119/60.
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,
27/20 = 27 × 3/20 × 3 = 81/60 - Subtract the two like fractions:
200/60 - 81/60 = 200 - 81/60 = 119/60 - In mixed form: 159/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-27/20 40/12-54/20 40/24-27/20 40/12-27/40 40/12-81/20 40/36-27/20 40/12-27/60 40/60-27/20 40/84-27/20