Subtract 5/40 from 1/80
1/80 - 5/40 is -9/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
1/80 = 1 × 1/80 × 1 = 1/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
5/40 = 5 × 2/40 × 2 = 10/80 - Subtract the two like fractions:
1/80 - 10/80 = 1 - 10/80 = -9/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/80-5/40 1/80-10/40 1/80-5/80 3/80-5/40 1/80-15/40 5/80-5/40 1/80-25/40 7/80-5/40 1/80-35/40