Answers

Add 90/81 and 42/32

1^st number: 1 9/81, 2^nd number: 1 10/32

90/81 + 42/32 is 349/144.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 32 is 2592
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2592
2. For the 1st fraction, since 81 × 32 = 2592,
   90/81 = 90 × 32/81 × 32 = 2880/2592
3. Likewise, for the 2nd fraction, since 32 × 81 = 2592,
   42/32 = 42 × 81/32 × 81 = 3402/2592
4. Add the two like fractions:
   2880/2592 + 3402/2592 = 2880 + 3402/2592 = 6282/2592
5. 6282/2592 simplified gives 349/144
6. So, 90/81 + 42/32 = 349/144
   In mixed form: 261/144

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