Answers

Add 20/63 and 3/84

20/63 + 3/84 is 89/252.

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,
   20/63 = 20 × 4/63 × 4 = 80/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   3/84 = 3 × 3/84 × 3 = 9/252
4. Add the two like fractions:
   80/252 + 9/252 = 80 + 9/252 = 89/252
5. So, 20/63 + 3/84 = 89/252

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