Answers

Add 63/42 and 70/54

1^st number: 1 21/42, 2^nd number: 1 16/54

63/42 + 70/54 is 151/54.

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,
   63/42 = 63 × 9/42 × 9 = 567/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   70/54 = 70 × 7/54 × 7 = 490/378
4. Add the two like fractions:
   567/378 + 490/378 = 567 + 490/378 = 1057/378
5. 1057/378 simplified gives 151/54
6. So, 63/42 + 70/54 = 151/54
   In mixed form: 243/54

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