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Add 20/63 and 40/54

20/63 + 40/54 is 200/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 63 × 6 = 378,
    20/63 = 20 × 6/63 × 6 = 120/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    40/54 = 40 × 7/54 × 7 = 280/378
  4. Add the two like fractions:
    120/378 + 280/378 = 120 + 280/378 = 400/378
  5. 400/378 simplified gives 200/189
  6. So, 20/63 + 40/54 = 200/189
    In mixed form: 111/189

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