Answers

Add 20/28 and 63/27

1^st number: 20/28, 2^nd number: 2 9/27

20/28 + 63/27 is 64/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 27 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   20/28 = 20 × 27/28 × 27 = 540/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   63/27 = 63 × 28/27 × 28 = 1764/756
4. Add the two like fractions:
   540/756 + 1764/756 = 540 + 1764/756 = 2304/756
5. 2304/756 simplified gives 64/21
6. So, 20/28 + 63/27 = 64/21
   In mixed form: 31/21

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