Answers

Add 84/18 and 90/27

1^st number: 4 12/18, 2^nd number: 3 9/27

84/18 + 90/27 is 8/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 27 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 18 × 3 = 54,
   84/18 = 84 × 3/18 × 3 = 252/54
3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
   90/27 = 90 × 2/27 × 2 = 180/54
4. Add the two like fractions:
   252/54 + 180/54 = 252 + 180/54 = 432/54
5. 432/54 simplified gives 8/1
6. So, 84/18 + 90/27 = 8/1

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