Answers

Add 81/30 and 27/36

1^st number: 2 21/30, 2^nd number: 27/36

81/30 + 27/36 is 69/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 36 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 30 × 6 = 180,
   81/30 = 81 × 6/30 × 6 = 486/180
3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
   27/36 = 27 × 5/36 × 5 = 135/180
4. Add the two like fractions:
   486/180 + 135/180 = 486 + 135/180 = 621/180
5. 621/180 simplified gives 69/20
6. So, 81/30 + 27/36 = 69/20
   In mixed form: 39/20

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