Subtract 2/18 from 80/4
1st number: 20 0/4, 2nd number: 2/18
80/4 - 2/18 is 179/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
80/4 = 80 × 9/4 × 9 = 720/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
2/18 = 2 × 2/18 × 2 = 4/36 - Subtract the two like fractions:
720/36 - 4/36 = 720 - 4/36 = 716/36 - After reducing the fraction, the answer is 179/9
- In mixed form: 198/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-4/18 80/8-2/18 80/4-2/36 80/4-6/18 80/12-2/18 80/4-2/54 80/4-10/18 80/20-2/18 80/4-2/90 80/4-14/18 80/28-2/18