Subtract 1/5 from 4/80
4/80 - 1/5 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
1/5 = 1 × 16/5 × 16 = 16/80 - Subtract the two like fractions:
4/80 - 16/80 = 4 - 16/80 = -12/80 - After reducing the fraction, the answer is -3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/80-1/5 4/80-2/5 4/80-1/10 12/80-1/5 4/80-3/5 4/80-1/15 20/80-1/5 4/80-1/25 28/80-1/5 4/80-7/5 4/80-1/35