Answers

Add 84/15 and 28/54

1^st number: 5 9/15, 2^nd number: 28/54

84/15 + 28/54 is 826/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   84/15 = 84 × 18/15 × 18 = 1512/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   28/54 = 28 × 5/54 × 5 = 140/270
4. Add the two like fractions:
   1512/270 + 140/270 = 1512 + 140/270 = 1652/270
5. 1652/270 simplified gives 826/135
6. So, 84/15 + 28/54 = 826/135
   In mixed form: 616/135

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