Subtract 27/18 from 18/4
1st number: 4 2/4, 2nd number: 1 9/18
18/4 - 27/18 is 3/1.
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,
18/4 = 18 × 9/4 × 9 = 162/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
27/18 = 27 × 2/18 × 2 = 54/36 - Subtract the two like fractions:
162/36 - 54/36 = 162 - 54/36 = 108/36 - After reducing the fraction, the answer is 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-27/18 18/4-54/18 18/8-27/18 18/4-27/36 54/4-27/18 18/4-81/18 18/12-27/18 18/4-27/54 90/4-27/18 18/20-27/18 18/4-27/90 18/28-27/18