Answers

Add 80/28 and 28/27

1^st number: 2 24/28, 2^nd number: 1 1/27

80/28 + 28/27 is 736/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 27 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 27 × 28 = 756,
   28/27 = 28 × 28/27 × 28 = 784/756
4. Add the two like fractions:
   2160/756 + 784/756 = 2160 + 784/756 = 2944/756
5. 2944/756 simplified gives 736/189
6. So, 80/28 + 28/27 = 736/189
   In mixed form: 3169/189

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