Answers

Add 63/27 and 20/84

1^st number: 2 9/27, 2^nd number: 20/84

63/27 + 20/84 is 18/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 84 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 27 × 28 = 756,
   63/27 = 63 × 28/27 × 28 = 1764/756
3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
   20/84 = 20 × 9/84 × 9 = 180/756
4. Add the two like fractions:
   1764/756 + 180/756 = 1764 + 180/756 = 1944/756
5. 1944/756 simplified gives 18/7
6. So, 63/27 + 20/84 = 18/7
   In mixed form: 24/7

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