Answers

Add 84/15 and 54/5

1^st number: 5 9/15, 2^nd number: 10 4/5

84/15 + 54/5 is 82/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 5 is 15
   
   Next, find the equivalent fraction of both fractional numbers with denominator 15
2. For the 1st fraction, since 15 × 1 = 15,
   84/15 = 84 × 1/15 × 1 = 84/15
3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
   54/5 = 54 × 3/5 × 3 = 162/15
4. Add the two like fractions:
   84/15 + 162/15 = 84 + 162/15 = 246/15
5. 246/15 simplified gives 82/5
6. So, 84/15 + 54/5 = 82/5
   In mixed form: 162/5

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