Subtract 21/36 from 15/14
1st number: 1 1/14, 2nd number: 21/36
15/14 - 21/36 is 41/84.
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,
15/14 = 15 × 18/14 × 18 = 270/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Subtract the two like fractions:
270/252 - 147/252 = 270 - 147/252 = 123/252 - After reducing the fraction, the answer is 41/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14-21/36 15/14-42/36 15/28-21/36 15/14-21/72 45/14-21/36 15/14-63/36 15/42-21/36 75/14-21/36 15/70-21/36 15/98-21/36