Subtract 9/14 from 18/36
18/36 - 9/14 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 14 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
18/36 = 18 × 7/36 × 7 = 126/252 - Likewise, for the 2nd fraction, since 14 × 18 = 252,
9/14 = 9 × 18/14 × 18 = 162/252 - Subtract the two like fractions:
126/252 - 162/252 = 126 - 162/252 = -36/252 - After reducing the fraction, the answer is -1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36-18/14 18/72-9/14 18/36-9/28 54/36-9/14 18/36-27/14 18/36-9/42 90/36-9/14 18/36-45/14 18/36-9/70 18/36-63/14 18/36-9/98