Add 5/42 and 42/18
1st number: 5/42, 2nd number: 2 6/18
5/42 + 42/18 is 103/42.
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,
5/42 = 5 × 3/42 × 3 = 15/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
42/18 = 42 × 7/18 × 7 = 294/126 - Add the two like fractions:
15/126 + 294/126 = 15 + 294/126 = 309/126 - 309/126 simplified gives 103/42
- So, 5/42 + 42/18 = 103/42
In mixed form: 219/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+42/18 5/42+84/18 5/84+42/18 5/42+42/36 15/42+42/18 5/42+42/54 25/42+42/18 5/42+42/90 35/42+42/18