Answers

Add 8/81 and 45/21

1^st number: 8/81, 2^nd number: 2 3/21

8/81 + 45/21 is 1271/567.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 21 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 81 × 7 = 567,
   8/81 = 8 × 7/81 × 7 = 56/567
3. Likewise, for the 2nd fraction, since 21 × 27 = 567,
   45/21 = 45 × 27/21 × 27 = 1215/567
4. Add the two like fractions:
   56/567 + 1215/567 = 56 + 1215/567 = 1271/567
5. So, 8/81 + 45/21 = 1271/567
   In mixed form: 2137/567

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