Answers

Add 8/63 and 42/5

1^st number: 8/63, 2^nd number: 8 2/5

8/63 + 42/5 is 2686/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 5 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   8/63 = 8 × 5/63 × 5 = 40/315
3. Likewise, for the 2nd fraction, since 5 × 63 = 315,
   42/5 = 42 × 63/5 × 63 = 2646/315
4. Add the two like fractions:
   40/315 + 2646/315 = 40 + 2646/315 = 2686/315
5. So, 8/63 + 42/5 = 2686/315
   In mixed form: 8166/315

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