Subtract 18/8 from 80/5
1st number: 16 0/5, 2nd number: 2 2/8
80/5 - 18/8 is 55/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
80/5 = 80 × 8/5 × 8 = 640/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
18/8 = 18 × 5/8 × 5 = 90/40 - Subtract the two like fractions:
640/40 - 90/40 = 640 - 90/40 = 550/40 - After reducing the fraction, the answer is 55/4
- In mixed form: 133/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-36/8 80/10-18/8 80/5-18/16 80/5-54/8 80/15-18/8 80/5-18/24 80/5-90/8 80/25-18/8 80/5-18/40 80/35-18/8 80/5-18/56