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Add 30/54 and 40/63

30/54 + 40/63 is 25/21.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    30/54 = 30 × 7/54 × 7 = 210/378
  3. Likewise, for the 2nd fraction, since 63 × 6 = 378,
    40/63 = 40 × 6/63 × 6 = 240/378
  4. Add the two like fractions:
    210/378 + 240/378 = 210 + 240/378 = 450/378
  5. 450/378 simplified gives 25/21
  6. So, 30/54 + 40/63 = 25/21
    In mixed form: 14/21

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