Add 84/42 and 98/18
1st number: 2 0/42, 2nd number: 5 8/18
84/42 + 98/18 is 67/9.
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,
84/42 = 84 × 3/42 × 3 = 252/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
98/18 = 98 × 7/18 × 7 = 686/126 - Add the two like fractions:
252/126 + 686/126 = 252 + 686/126 = 938/126 - 938/126 simplified gives 67/9
- So, 84/42 + 98/18 = 67/9
In mixed form: 74/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+98/36 84/42+98/54 84/42+98/90