Add 14/21 and 84/36
1st number: 14/21, 2nd number: 2 12/36
14/21 + 84/36 is 3/1.
Steps for adding 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,
14/21 = 14 × 12/21 × 12 = 168/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
84/36 = 84 × 7/36 × 7 = 588/252 - Add the two like fractions:
168/252 + 588/252 = 168 + 588/252 = 756/252 - 756/252 simplified gives 3/1
- So, 14/21 + 84/36 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+84/36 14/42+84/36 14/21+84/72 42/21+84/36 14/63+84/36 70/21+84/36 98/21+84/36