Answers

Add 60/42 and 21/54

1^st number: 1 18/42, 2^nd number: 21/54

60/42 + 21/54 is 229/126.

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,
   60/42 = 60 × 9/42 × 9 = 540/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   21/54 = 21 × 7/54 × 7 = 147/378
4. Add the two like fractions:
   540/378 + 147/378 = 540 + 147/378 = 687/378
5. 687/378 simplified gives 229/126
6. So, 60/42 + 21/54 = 229/126
   In mixed form: 1103/126

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