Answers

Add 70/45 and 3/81

1^st number: 1 25/45, 2^nd number: 3/81

70/45 + 3/81 is 43/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 45 × 9 = 405,
   70/45 = 70 × 9/45 × 9 = 630/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   3/81 = 3 × 5/81 × 5 = 15/405
4. Add the two like fractions:
   630/405 + 15/405 = 630 + 15/405 = 645/405
5. 645/405 simplified gives 43/27
6. So, 70/45 + 3/81 = 43/27
   In mixed form: 116/27

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