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