Subtract 27/18 from 18/2
1st number: 9 0/2, 2nd number: 1 9/18
18/2 - 27/18 is 15/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
18/2 = 18 × 9/2 × 9 = 162/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
27/18 = 27 × 1/18 × 1 = 27/18 - Subtract the two like fractions:
162/18 - 27/18 = 162 - 27/18 = 135/18 - After reducing the fraction, the answer is 15/2
- In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2-27/18 18/2-54/18 18/4-27/18 18/2-27/36 54/2-27/18 18/2-81/18 18/6-27/18 18/2-27/54 90/2-27/18 18/10-27/18 18/2-27/90 18/14-27/18