Answers

Add 81/84 and 5/75

81/84 + 5/75 is 433/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 75 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   81/84 = 81 × 25/84 × 25 = 2025/2100
3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
   5/75 = 5 × 28/75 × 28 = 140/2100
4. Add the two like fractions:
   2025/2100 + 140/2100 = 2025 + 140/2100 = 2165/2100
5. 2165/2100 simplified gives 433/420
6. So, 81/84 + 5/75 = 433/420
   In mixed form: 113/420

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