Subtract 8/80 from 3/2
1st number: 1 1/2, 2nd number: 8/80
3/2 - 8/80 is 7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
3/2 = 3 × 40/2 × 40 = 120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
8/80 = 8 × 1/80 × 1 = 8/80 - Subtract the two like fractions:
120/80 - 8/80 = 120 - 8/80 = 112/80 - After reducing the fraction, the answer is 7/5
- In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2-8/80 3/2-16/80 3/4-8/80 9/2-8/80 3/2-24/80 3/6-8/80 15/2-8/80 3/2-40/80 3/10-8/80 21/2-8/80 3/2-56/80 3/14-8/80