Answers

Add 81/60 and 27/12

1^st number: 1 21/60, 2^nd number: 2 3/12

81/60 + 27/12 is 18/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 60 × 1 = 60,
   81/60 = 81 × 1/60 × 1 = 81/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   27/12 = 27 × 5/12 × 5 = 135/60
4. Add the two like fractions:
   81/60 + 135/60 = 81 + 135/60 = 216/60
5. 216/60 simplified gives 18/5
6. So, 81/60 + 27/12 = 18/5
   In mixed form: 33/5

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