Answers

Add 42/54 and 45/18

1^st number: 42/54, 2^nd number: 2 9/18

42/54 + 45/18 is 59/18.

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,
   42/54 = 42 × 1/54 × 1 = 42/54
3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
   45/18 = 45 × 3/18 × 3 = 135/54
4. Add the two like fractions:
   42/54 + 135/54 = 42 + 135/54 = 177/54
5. 177/54 simplified gives 59/18
6. So, 42/54 + 45/18 = 59/18
   In mixed form: 35/18

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