Add 8/42 and 9/18
8/42 + 9/18 is 29/42.
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,
8/42 = 8 × 3/42 × 3 = 24/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
9/18 = 9 × 7/18 × 7 = 63/126 - Add the two like fractions:
24/126 + 63/126 = 24 + 63/126 = 87/126 - 87/126 simplified gives 29/42
- So, 8/42 + 9/18 = 29/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+9/18 8/84+9/18 8/42+9/36 24/42+9/18 8/42+27/18 8/42+9/54 40/42+9/18 8/42+45/18 8/42+9/90 56/42+9/18 8/42+63/18