Answers

Add 90/64 and 5/81

1^st number: 1 26/64, 2^nd number: 5/81

90/64 + 5/81 is 3805/2592.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 81 is 5184
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5184
2. For the 1st fraction, since 64 × 81 = 5184,
   90/64 = 90 × 81/64 × 81 = 7290/5184
3. Likewise, for the 2nd fraction, since 81 × 64 = 5184,
   5/81 = 5 × 64/81 × 64 = 320/5184
4. Add the two like fractions:
   7290/5184 + 320/5184 = 7290 + 320/5184 = 7610/5184
5. 7610/5184 simplified gives 3805/2592
6. So, 90/64 + 5/81 = 3805/2592
   In mixed form: 11213/2592

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