Answers

Add 84/6 and 63/21

1^st number: 14 0/6, 2^nd number: 3 0/21

84/6 + 63/21 is 17/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 6 × 7 = 42,
   84/6 = 84 × 7/6 × 7 = 588/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   63/21 = 63 × 2/21 × 2 = 126/42
4. Add the two like fractions:
   588/42 + 126/42 = 588 + 126/42 = 714/42
5. 714/42 simplified gives 17/1
6. So, 84/6 + 63/21 = 17/1

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