Subtract 21/36 from 9/14
9/14 - 21/36 is 5/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 14 × 18 = 252,
9/14 = 9 × 18/14 × 18 = 162/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Subtract the two like fractions:
162/252 - 147/252 = 162 - 147/252 = 15/252 - After reducing the fraction, the answer is 5/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14-21/36 9/14-42/36 9/28-21/36 9/14-21/72 27/14-21/36 9/14-63/36 9/42-21/36 45/14-21/36 9/70-21/36 63/14-21/36 9/98-21/36