Subtract 14/36 from 84/21
1st number: 4 0/21, 2nd number: 14/36
84/21 - 14/36 is 65/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
84/21 = 84 × 12/21 × 12 = 1008/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
14/36 = 14 × 7/36 × 7 = 98/252 - Subtract the two like fractions:
1008/252 - 98/252 = 1008 - 98/252 = 910/252 - After reducing the fraction, the answer is 65/18
- In mixed form: 311/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21-28/36 84/42-14/36 84/21-14/72 84/21-42/36 84/63-14/36 84/21-70/36 84/21-98/36