Answers

Add 98/18 and 63/21

1^st number: 5 8/18, 2^nd number: 3 0/21

98/18 + 63/21 is 76/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 21 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   98/18 = 98 × 7/18 × 7 = 686/126
3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
   63/21 = 63 × 6/21 × 6 = 378/126
4. Add the two like fractions:
   686/126 + 378/126 = 686 + 378/126 = 1064/126
5. 1064/126 simplified gives 76/9
6. So, 98/18 + 63/21 = 76/9
   In mixed form: 84/9

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