Answers

Add 98/21 and 84/18

1^st number: 4 14/21, 2^nd number: 4 12/18

98/21 + 84/18 is 28/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 21 × 6 = 126,
   98/21 = 98 × 6/21 × 6 = 588/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   84/18 = 84 × 7/18 × 7 = 588/126
4. Add the two like fractions:
   588/126 + 588/126 = 588 + 588/126 = 1176/126
5. 1176/126 simplified gives 28/3
6. So, 98/21 + 84/18 = 28/3
   In mixed form: 91/3

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