Answers

Add 80/75 and 12/81

1^st number: 1 5/75, 2^nd number: 12/81

80/75 + 12/81 is 164/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 81 is 2025
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2025
2. For the 1st fraction, since 75 × 27 = 2025,
   80/75 = 80 × 27/75 × 27 = 2160/2025
3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
   12/81 = 12 × 25/81 × 25 = 300/2025
4. Add the two like fractions:
   2160/2025 + 300/2025 = 2160 + 300/2025 = 2460/2025
5. 2460/2025 simplified gives 164/135
6. So, 80/75 + 12/81 = 164/135
   In mixed form: 129/135

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