Add 1/42 and 18/9
1st number: 1/42, 2nd number: 2 0/9
1/42 + 18/9 is 85/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
1/42 = 1 × 3/42 × 3 = 3/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
18/9 = 18 × 14/9 × 14 = 252/126 - Add the two like fractions:
3/126 + 252/126 = 3 + 252/126 = 255/126 - 255/126 simplified gives 85/42
- So, 1/42 + 18/9 = 85/42
In mixed form: 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+18/9 1/42+36/9 1/84+18/9 3/42+18/9 1/42+54/9 1/42+18/27 5/42+18/9 1/42+90/9 1/42+18/45 7/42+18/9 1/42+18/63