Subtract 7/40 from 3/6
3/6 - 7/40 is 13/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
3/6 = 3 × 20/6 × 20 = 60/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Subtract the two like fractions:
60/120 - 21/120 = 60 - 21/120 = 39/120 - After reducing the fraction, the answer is 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-14/40 3/12-7/40 3/6-7/80 9/6-7/40 3/6-21/40 3/18-7/40 15/6-7/40 3/6-35/40 3/30-7/40 21/6-7/40 3/6-49/40 3/42-7/40