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Add 90/42 and 20/27

1st number: 2 6/42, 2nd number: 20/27

90/42 + 20/27 is 545/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 27 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 42 × 9 = 378,
    90/42 = 90 × 9/42 × 9 = 810/378
  3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
    20/27 = 20 × 14/27 × 14 = 280/378
  4. Add the two like fractions:
    810/378 + 280/378 = 810 + 280/378 = 1090/378
  5. 1090/378 simplified gives 545/189
  6. So, 90/42 + 20/27 = 545/189
    In mixed form: 2167/189

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