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Add 28/54 and 81/7

1st number: 28/54, 2nd number: 11 4/7

28/54 + 81/7 is 2285/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 7 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    28/54 = 28 × 7/54 × 7 = 196/378
  3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
    81/7 = 81 × 54/7 × 54 = 4374/378
  4. Add the two like fractions:
    196/378 + 4374/378 = 196 + 4374/378 = 4570/378
  5. 4570/378 simplified gives 2285/189
  6. So, 28/54 + 81/7 = 2285/189
    In mixed form: 1217/189

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