Answers

Add 80/28 and 84/54

1^st number: 2 24/28, 2^nd number: 1 30/54

80/28 + 84/54 is 278/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   80/28 = 80 × 27/28 × 27 = 2160/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   84/54 = 84 × 14/54 × 14 = 1176/756
4. Add the two like fractions:
   2160/756 + 1176/756 = 2160 + 1176/756 = 3336/756
5. 3336/756 simplified gives 278/63
6. So, 80/28 + 84/54 = 278/63
   In mixed form: 426/63

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