Add 12/42 and 49/18
1st number: 12/42, 2nd number: 2 13/18
12/42 + 49/18 is 379/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
12/42 = 12 × 3/42 × 3 = 36/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
49/18 = 49 × 7/18 × 7 = 343/126 - Add the two like fractions:
36/126 + 343/126 = 36 + 343/126 = 379/126 - So, 12/42 + 49/18 = 379/126
In mixed form: 31/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+49/18 12/42+98/18 12/84+49/18 12/42+49/36 36/42+49/18 12/42+49/54 60/42+49/18 12/42+49/90 84/42+49/18