Answers

Add 81/4 and 15/75

1^st number: 20 1/4, 2^nd number: 15/75

81/4 + 15/75 is 409/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 4 × 75 = 300,
   81/4 = 81 × 75/4 × 75 = 6075/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   15/75 = 15 × 4/75 × 4 = 60/300
4. Add the two like fractions:
   6075/300 + 60/300 = 6075 + 60/300 = 6135/300
5. 6135/300 simplified gives 409/20
6. So, 81/4 + 15/75 = 409/20
   In mixed form: 209/20

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