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Add 90/48 and 15/81

1st number: 1 42/48, 2nd number: 15/81

90/48 + 15/81 is 445/216.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 81 is 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,
    15/81 = 15 × 16/81 × 16 = 240/1296
  4. Add the two fractions:
    2430/1296 + 240/1296 = 2430 + 240/1296 = 2670/1296
  5. 2670/1296 simplified gives 445/216
  6. So, 90/48 + 15/81 = 445/216
    In mixed form: 213/216

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