Answers

Add 28/84 and 27/45

28/84 + 27/45 is 14/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   28/84 = 28 × 15/84 × 15 = 420/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   27/45 = 27 × 28/45 × 28 = 756/1260
4. Add the two like fractions:
   420/1260 + 756/1260 = 420 + 756/1260 = 1176/1260
5. 1176/1260 simplified gives 14/15
6. So, 28/84 + 27/45 = 14/15

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