Answers

Add 3/84 and 9/63

3/84 + 9/63 is 5/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   3/84 = 3 × 3/84 × 3 = 9/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   9/63 = 9 × 4/63 × 4 = 36/252
4. Add the two like fractions:
   9/252 + 36/252 = 9 + 36/252 = 45/252
5. 45/252 simplified gives 5/28
6. So, 3/84 + 9/63 = 5/28

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