Answers

Add 28/84 and 90/27

1^st number: 28/84, 2^nd number: 3 9/27

28/84 + 90/27 is 11/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 27 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   28/84 = 28 × 9/84 × 9 = 252/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   90/27 = 90 × 28/27 × 28 = 2520/756
4. Add the two like fractions:
   252/756 + 2520/756 = 252 + 2520/756 = 2772/756
5. 2772/756 simplified gives 11/3
6. So, 28/84 + 90/27 = 11/3
   In mixed form: 32/3

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