Answers

Add 54/42 and 49/27

1^st number: 1 12/42, 2^nd number: 1 22/27

54/42 + 49/27 is 586/189.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 27 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   54/42 = 54 × 9/42 × 9 = 486/378
3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
   49/27 = 49 × 14/27 × 14 = 686/378
4. Add the two like fractions:
   486/378 + 686/378 = 486 + 686/378 = 1172/378
5. 1172/378 simplified gives 586/189
6. So, 54/42 + 49/27 = 586/189
   In mixed form: 319/189

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