Subtract 9/40 from 6/12
6/12 - 9/40 is 11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
6/12 = 6 × 10/12 × 10 = 60/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Subtract the two like fractions:
60/120 - 27/120 = 60 - 27/120 = 33/120 - After reducing the fraction, the answer is 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-18/40 6/24-9/40 6/12-9/80 18/12-9/40 6/12-27/40 6/36-9/40 30/12-9/40 6/12-45/40 6/60-9/40 42/12-9/40 6/12-63/40 6/84-9/40