Add 18/42 and 49/12
1st number: 18/42, 2nd number: 4 1/12
18/42 + 49/12 is 379/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
18/42 = 18 × 2/42 × 2 = 36/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
49/12 = 49 × 7/12 × 7 = 343/84 - Add the two like fractions:
36/84 + 343/84 = 36 + 343/84 = 379/84 - So, 18/42 + 49/12 = 379/84
In mixed form: 443/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42+49/12 18/42+98/12 18/84+49/12 18/42+49/24 54/42+49/12 18/42+49/36 90/42+49/12 18/42+49/60 18/42+49/84