Add 14/84 and 21/18
1st number: 14/84, 2nd number: 1 3/18
14/84 + 21/18 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
14/84 = 14 × 3/84 × 3 = 42/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Add the two like fractions:
42/252 + 294/252 = 42 + 294/252 = 336/252 - 336/252 simplified gives 4/3
- So, 14/84 + 21/18 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+21/18 14/84+42/18 14/84+21/36 42/84+21/18 14/84+63/18 14/84+21/54 70/84+21/18 14/84+21/90 98/84+21/18