Answers

Add 84/15 and 28/84

1^st number: 5 9/15, 2^nd number: 28/84

84/15 + 28/84 is 89/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 15 × 28 = 420,
   84/15 = 84 × 28/15 × 28 = 2352/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   28/84 = 28 × 5/84 × 5 = 140/420
4. Add the two like fractions:
   2352/420 + 140/420 = 2352 + 140/420 = 2492/420
5. 2492/420 simplified gives 89/15
6. So, 84/15 + 28/84 = 89/15
   In mixed form: 514/15

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