Answers

Add 45/54 and 27/18

1^st number: 45/54, 2^nd number: 1 9/18

45/54 + 27/18 is 7/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 18 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   45/54 = 45 × 1/54 × 1 = 45/54
3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
   27/18 = 27 × 3/18 × 3 = 81/54
4. Add the two like fractions:
   45/54 + 81/54 = 45 + 81/54 = 126/54
5. 126/54 simplified gives 7/3
6. So, 45/54 + 27/18 = 7/3
   In mixed form: 21/3

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