Answers

Add 42/12 and 48/63

1^st number: 3 6/12, 2^nd number: 48/63

42/12 + 48/63 is 179/42.

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,
   42/12 = 42 × 21/12 × 21 = 882/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   48/63 = 48 × 4/63 × 4 = 192/252
4. Add the two like fractions:
   882/252 + 192/252 = 882 + 192/252 = 1074/252
5. 1074/252 simplified gives 179/42
6. So, 42/12 + 48/63 = 179/42
   In mixed form: 411/42

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