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Add 20/54 and 16/42

20/54 + 16/42 is 142/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    20/54 = 20 × 7/54 × 7 = 140/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    16/42 = 16 × 9/42 × 9 = 144/378
  4. Add the two like fractions:
    140/378 + 144/378 = 140 + 144/378 = 284/378
  5. 284/378 simplified gives 142/189
  6. So, 20/54 + 16/42 = 142/189

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