Subtract 8/40 from 75/80
75/80 - 8/40 is 59/80.
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,
75/80 = 75 × 1/80 × 1 = 75/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
8/40 = 8 × 2/40 × 2 = 16/80 - Subtract the two like fractions:
75/80 - 16/80 = 75 - 16/80 = 59/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80-16/40 75/80-8/80 75/80-24/40 75/80-56/40