Answers

Add 8/63 and 20/84

8/63 + 20/84 is 23/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 84 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   8/63 = 8 × 4/63 × 4 = 32/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   20/84 = 20 × 3/84 × 3 = 60/252
4. Add the two like fractions:
   32/252 + 60/252 = 32 + 60/252 = 92/252
5. 92/252 simplified gives 23/63
6. So, 8/63 + 20/84 = 23/63

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