Answers

Add 81/12 and 30/75

1^st number: 6 9/12, 2^nd number: 30/75

81/12 + 30/75 is 143/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 12 × 25 = 300,
   81/12 = 81 × 25/12 × 25 = 2025/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   30/75 = 30 × 4/75 × 4 = 120/300
4. Add the two like fractions:
   2025/300 + 120/300 = 2025 + 120/300 = 2145/300
5. 2145/300 simplified gives 143/20
6. So, 81/12 + 30/75 = 143/20
   In mixed form: 73/20

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