Subtract 8/18 from 8/5
1st number: 1 3/5, 2nd number: 8/18
8/5 - 8/18 is 52/45.
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,
8/5 = 8 × 18/5 × 18 = 144/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Subtract the two like fractions:
144/90 - 40/90 = 144 - 40/90 = 104/90 - After reducing the fraction, the answer is 52/45
- In mixed form: 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/5-8/18 8/5-16/18 8/10-8/18 8/5-8/36 24/5-8/18 8/5-24/18 8/15-8/18 8/5-8/54 40/5-8/18 8/5-40/18 8/25-8/18 8/5-8/90 56/5-8/18 8/5-56/18 8/35-8/18