Answers

Add 50/42 and 12/54

1^st number: 1 8/42, 2^nd number: 12/54

50/42 + 12/54 is 89/63.

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,
   50/42 = 50 × 9/42 × 9 = 450/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   12/54 = 12 × 7/54 × 7 = 84/378
4. Add the two like fractions:
   450/378 + 84/378 = 450 + 84/378 = 534/378
5. 534/378 simplified gives 89/63
6. So, 50/42 + 12/54 = 89/63
   In mixed form: 126/63

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