Subtract 27/18 from 80/4
1st number: 20 0/4, 2nd number: 1 9/18
80/4 - 27/18 is 37/2.
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,
27/18 = 27 × 2/18 × 2 = 54/36 - Subtract the two like fractions:
720/36 - 54/36 = 720 - 54/36 = 666/36 - After reducing the fraction, the answer is 37/2
- In mixed form: 181/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-54/18 80/8-27/18 80/4-27/36 80/4-81/18 80/12-27/18 80/4-27/54 80/20-27/18 80/4-27/90 80/28-27/18