Answers

Add 84/21 and 9/6

1^st number: 4 0/21, 2^nd number: 1 3/6

84/21 + 9/6 is 11/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 6 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   84/21 = 84 × 2/21 × 2 = 168/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   9/6 = 9 × 7/6 × 7 = 63/42
4. Add the two like fractions:
   168/42 + 63/42 = 168 + 63/42 = 231/42
5. 231/42 simplified gives 11/2
6. So, 84/21 + 9/6 = 11/2
   In mixed form: 51/2

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