Subtract 18/30 from 80/5
1st number: 16 0/5, 2nd number: 18/30
80/5 - 18/30 is 77/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
80/5 = 80 × 6/5 × 6 = 480/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
18/30 = 18 × 1/30 × 1 = 18/30 - Subtract the two like fractions:
480/30 - 18/30 = 480 - 18/30 = 462/30 - After reducing the fraction, the answer is 77/5
- In mixed form: 152/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-36/30 80/10-18/30 80/5-18/60 80/5-54/30 80/15-18/30 80/5-18/90 80/5-90/30 80/25-18/30 80/35-18/30