Subtract 27/60 from 10/40
10/40 - 27/60 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
10/40 = 10 × 3/40 × 3 = 30/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
27/60 = 27 × 2/60 × 2 = 54/120 - Subtract the two like fractions:
30/120 - 54/120 = 30 - 54/120 = -24/120 - After reducing the fraction, the answer is -1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40-27/60 10/40-54/60 10/80-27/60 30/40-27/60 10/40-81/60 50/40-27/60 70/40-27/60