Subtract 8/4 from 8/80
1st number: 8/80, 2nd number: 2 0/4
8/80 - 8/4 is -19/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
8/80 = 8 × 1/80 × 1 = 8/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
8/4 = 8 × 20/4 × 20 = 160/80 - Subtract the two like fractions:
8/80 - 160/80 = 8 - 160/80 = -152/80 - After reducing the fraction, the answer is -19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/80-8/4 8/80-16/4 24/80-8/4 8/80-24/4 8/80-8/12 40/80-8/4 8/80-40/4 8/80-8/20 56/80-8/4 8/80-56/4 8/80-8/28