Answers

Add 90/48 and 75/81

1^st number: 1 42/48, 2^nd number: 75/81

90/48 + 75/81 is 605/216.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 48 × 27 = 1296,
   90/48 = 90 × 27/48 × 27 = 2430/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   75/81 = 75 × 16/81 × 16 = 1200/1296
4. Add the two like fractions:
   2430/1296 + 1200/1296 = 2430 + 1200/1296 = 3630/1296
5. 3630/1296 simplified gives 605/216
6. So, 90/48 + 75/81 = 605/216
   In mixed form: 2173/216

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