Answers

Add 75/60 and 80/81

1^st number: 1 15/60, 2^nd number: 80/81

75/60 + 80/81 is 725/324.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 81 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 60 × 27 = 1620,
   75/60 = 75 × 27/60 × 27 = 2025/1620
3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
   80/81 = 80 × 20/81 × 20 = 1600/1620
4. Add the two like fractions:
   2025/1620 + 1600/1620 = 2025 + 1600/1620 = 3625/1620
5. 3625/1620 simplified gives 725/324
6. So, 75/60 + 80/81 = 725/324
   In mixed form: 277/324

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