Answers

Add 84/4 and 84/80

1^st number: 21 0/4, 2^nd number: 1 4/80

84/4 + 84/80 is 441/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   84/4 = 84 × 20/4 × 20 = 1680/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   84/80 = 84 × 1/80 × 1 = 84/80
4. Add the two like fractions:
   1680/80 + 84/80 = 1680 + 84/80 = 1764/80
5. 1764/80 simplified gives 441/20
6. So, 84/4 + 84/80 = 441/20
   In mixed form: 221/20

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