Answers

Add 63/42 and 63/16

1^st number: 1 21/42, 2^nd number: 3 15/16

63/42 + 63/16 is 87/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   63/42 = 63 × 8/42 × 8 = 504/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   63/16 = 63 × 21/16 × 21 = 1323/336
4. Add the two like fractions:
   504/336 + 1323/336 = 504 + 1323/336 = 1827/336
5. 1827/336 simplified gives 87/16
6. So, 63/42 + 63/16 = 87/16
   In mixed form: 57/16

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