Answers

Add 27/12 and 42/63

1^st number: 2 3/12, 2^nd number: 42/63

27/12 + 42/63 is 35/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 12 × 21 = 252,
   27/12 = 27 × 21/12 × 21 = 567/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   42/63 = 42 × 4/63 × 4 = 168/252
4. Add the two like fractions:
   567/252 + 168/252 = 567 + 168/252 = 735/252
5. 735/252 simplified gives 35/12
6. So, 27/12 + 42/63 = 35/12
   In mixed form: 211/12

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