Answers

Add 28/21 and 3/81

1^st number: 1 7/21, 2^nd number: 3/81

28/21 + 3/81 is 37/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 21 × 27 = 567,
   28/21 = 28 × 27/21 × 27 = 756/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   3/81 = 3 × 7/81 × 7 = 21/567
4. Add the two like fractions:
   756/567 + 21/567 = 756 + 21/567 = 777/567
5. 777/567 simplified gives 37/27
6. So, 28/21 + 3/81 = 37/27
   In mixed form: 110/27

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