Answers

Add 84/54 and 9/42

1^st number: 1 30/54, 2^nd number: 9/42

84/54 + 9/42 is 223/126.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 42 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   84/54 = 84 × 7/54 × 7 = 588/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   9/42 = 9 × 9/42 × 9 = 81/378
4. Add the two like fractions:
   588/378 + 81/378 = 588 + 81/378 = 669/378
5. 669/378 simplified gives 223/126
6. So, 84/54 + 9/42 = 223/126
   In mixed form: 197/126

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