Answers

Add 28/84 and 12/24

28/84 + 12/24 is 5/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 24 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   28/84 = 28 × 2/84 × 2 = 56/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   12/24 = 12 × 7/24 × 7 = 84/168
4. Add the two like fractions:
   56/168 + 84/168 = 56 + 84/168 = 140/168
5. 140/168 simplified gives 5/6
6. So, 28/84 + 12/24 = 5/6

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