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Add 90/84 and 5/81

1st number: 1 6/84, 2nd number: 5/81

90/84 + 5/81 is 1285/1134.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 81 is 2268

    Next, find the equivalent fraction of both fractional numbers with denominator 2268
  2. For the 1st fraction, since 84 × 27 = 2268,
    90/84 = 90 × 27/84 × 27 = 2430/2268
  3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
    5/81 = 5 × 28/81 × 28 = 140/2268
  4. Add the two like fractions:
    2430/2268 + 140/2268 = 2430 + 140/2268 = 2570/2268
  5. 2570/2268 simplified gives 1285/1134
  6. So, 90/84 + 5/81 = 1285/1134
    In mixed form: 1151/1134

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