Add 12/42 and 35/18
1st number: 12/42, 2nd number: 1 17/18
12/42 + 35/18 is 281/126.
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,
35/18 = 35 × 7/18 × 7 = 245/126 - Add the two like fractions:
36/126 + 245/126 = 36 + 245/126 = 281/126 - So, 12/42 + 35/18 = 281/126
In mixed form: 229/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+35/18 12/42+70/18 12/84+35/18 12/42+35/36 36/42+35/18 12/42+35/54 60/42+35/18 12/42+35/90 84/42+35/18