Answers

Add 81/36 and 90/27

1^st number: 2 9/36, 2^nd number: 3 9/27

81/36 + 90/27 is 67/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 27 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 36 × 3 = 108,
   81/36 = 81 × 3/36 × 3 = 243/108
3. Likewise, for the 2nd fraction, since 27 × 4 = 108,
   90/27 = 90 × 4/27 × 4 = 360/108
4. Add the two like fractions:
   243/108 + 360/108 = 243 + 360/108 = 603/108
5. 603/108 simplified gives 67/12
6. So, 81/36 + 90/27 = 67/12
   In mixed form: 57/12

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