Answers

Add 84/42 and 7/54

1^st number: 2 0/42, 2^nd number: 7/54

84/42 + 7/54 is 115/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   84/42 = 84 × 9/42 × 9 = 756/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   7/54 = 7 × 7/54 × 7 = 49/378
4. Add the two like fractions:
   756/378 + 49/378 = 756 + 49/378 = 805/378
5. 805/378 simplified gives 115/54
6. So, 84/42 + 7/54 = 115/54
   In mixed form: 27/54

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