Subtract 9/18 from 27/9
1st number: 3 0/9, 2nd number: 9/18
27/9 - 9/18 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
27/9 = 27 × 2/9 × 2 = 54/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
9/18 = 9 × 1/18 × 1 = 9/18 - Subtract the two like fractions:
54/18 - 9/18 = 54 - 9/18 = 45/18 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9-9/18 27/18-9/18 27/9-9/36 81/9-9/18 27/9-27/18 27/9-9/54 27/9-45/18 27/45-9/18 27/9-9/90 27/9-63/18 27/63-9/18