Subtract 3/60 from 7/40
7/40 - 3/60 is 1/8.
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,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
3/60 = 3 × 2/60 × 2 = 6/120 - Subtract the two like fractions:
21/120 - 6/120 = 21 - 6/120 = 15/120 - After reducing the fraction, the answer is 1/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40-3/60 7/40-6/60 7/80-3/60 21/40-3/60 7/40-9/60 35/40-3/60 7/40-15/60 49/40-3/60 7/40-21/60