Answers

Add 80/84 and 28/54

80/84 + 28/54 is 278/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   80/84 = 80 × 9/84 × 9 = 720/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   28/54 = 28 × 14/54 × 14 = 392/756
4. Add the two like fractions:
   720/756 + 392/756 = 720 + 392/756 = 1112/756
5. 1112/756 simplified gives 278/189
6. So, 80/84 + 28/54 = 278/189
   In mixed form: 189/189

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