Answers

Add 63/42 and 45/8

1^st number: 1 21/42, 2^nd number: 5 5/8

63/42 + 45/8 is 57/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 42 × 4 = 168,
   63/42 = 63 × 4/42 × 4 = 252/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   45/8 = 45 × 21/8 × 21 = 945/168
4. Add the two like fractions:
   252/168 + 945/168 = 252 + 945/168 = 1197/168
5. 1197/168 simplified gives 57/8
6. So, 63/42 + 45/8 = 57/8
   In mixed form: 71/8

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