Answers

Add 81/18 and 25/75

1^st number: 4 9/18, 2^nd number: 25/75

81/18 + 25/75 is 29/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 75 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 18 × 25 = 450,
   81/18 = 81 × 25/18 × 25 = 2025/450
3. Likewise, for the 2nd fraction, since 75 × 6 = 450,
   25/75 = 25 × 6/75 × 6 = 150/450
4. Add the two like fractions:
   2025/450 + 150/450 = 2025 + 150/450 = 2175/450
5. 2175/450 simplified gives 29/6
6. So, 81/18 + 25/75 = 29/6
   In mixed form: 45/6

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