Subtract 27/12 from 6/40
1st number: 6/40, 2nd number: 2 3/12
6/40 - 27/12 is -21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
27/12 = 27 × 10/12 × 10 = 270/120 - Subtract the two like fractions:
18/120 - 270/120 = 18 - 270/120 = -252/120 - After reducing the fraction, the answer is -21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40-27/12 6/40-54/12 6/80-27/12 6/40-27/24 18/40-27/12 6/40-81/12 6/40-27/36 30/40-27/12 6/40-27/60 42/40-27/12 6/40-27/84