Add 49/84 and 21/18
1st number: 49/84, 2nd number: 1 3/18
49/84 + 21/18 is 7/4.
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,
49/84 = 49 × 3/84 × 3 = 147/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Add the two like fractions:
147/252 + 294/252 = 147 + 294/252 = 441/252 - 441/252 simplified gives 7/4
- So, 49/84 + 21/18 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/84+21/18 49/84+42/18 49/84+21/36 49/84+63/18 49/84+21/54 49/84+21/90