Answers

Add 56/81 and 45/30

1^st number: 56/81, 2^nd number: 1 15/30

56/81 + 45/30 is 355/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 30 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 81 × 10 = 810,
   56/81 = 56 × 10/81 × 10 = 560/810
3. Likewise, for the 2nd fraction, since 30 × 27 = 810,
   45/30 = 45 × 27/30 × 27 = 1215/810
4. Add the two like fractions:
   560/810 + 1215/810 = 560 + 1215/810 = 1775/810
5. 1775/810 simplified gives 355/162
6. So, 56/81 + 45/30 = 355/162
   In mixed form: 231/162

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