Answers

Add 84/4 and 84/8

1^st number: 21 0/4, 2^nd number: 10 4/8

84/4 + 84/8 is 63/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 8 is 8
   
   Next, find the equivalent fraction of both fractional numbers with denominator 8
2. For the 1st fraction, since 4 × 2 = 8,
   84/4 = 84 × 2/4 × 2 = 168/8
3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
   84/8 = 84 × 1/8 × 1 = 84/8
4. Add the two like fractions:
   168/8 + 84/8 = 168 + 84/8 = 252/8
5. 252/8 simplified gives 63/2
6. So, 84/4 + 84/8 = 63/2
   In mixed form: 311/2

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