Answers

Add 63/12 and 42/63

1^st number: 5 3/12, 2^nd number: 42/63

63/12 + 42/63 is 71/12.

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,
   63/12 = 63 × 21/12 × 21 = 1323/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   42/63 = 42 × 4/63 × 4 = 168/252
4. Add the two like fractions:
   1323/252 + 168/252 = 1323 + 168/252 = 1491/252
5. 1491/252 simplified gives 71/12
6. So, 63/12 + 42/63 = 71/12
   In mixed form: 511/12

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