Answers

Add 80/54 and 3/42

1^st number: 1 26/54, 2^nd number: 3/42

80/54 + 3/42 is 587/378.

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,
   80/54 = 80 × 7/54 × 7 = 560/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   3/42 = 3 × 9/42 × 9 = 27/378
4. Add the two like fractions:
   560/378 + 27/378 = 560 + 27/378 = 587/378
5. So, 80/54 + 3/42 = 587/378
   In mixed form: 1209/378

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