Answers

Add 81/42 and 36/25

1^st number: 1 39/42, 2^nd number: 1 11/25

81/42 + 36/25 is 1179/350.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 25 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 42 × 25 = 1050,
   81/42 = 81 × 25/42 × 25 = 2025/1050
3. Likewise, for the 2nd fraction, since 25 × 42 = 1050,
   36/25 = 36 × 42/25 × 42 = 1512/1050
4. Add the two like fractions:
   2025/1050 + 1512/1050 = 2025 + 1512/1050 = 3537/1050
5. 3537/1050 simplified gives 1179/350
6. So, 81/42 + 36/25 = 1179/350
   In mixed form: 3129/350

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