Subtract 8/18 from 80/5
1st number: 16 0/5, 2nd number: 8/18
80/5 - 8/18 is 140/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
80/5 = 80 × 18/5 × 18 = 1440/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Subtract the two like fractions:
1440/90 - 40/90 = 1440 - 40/90 = 1400/90 - After reducing the fraction, the answer is 140/9
- In mixed form: 155/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-16/18 80/10-8/18 80/5-8/36 80/5-24/18 80/15-8/18 80/5-8/54 80/5-40/18 80/25-8/18 80/5-8/90 80/5-56/18 80/35-8/18