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Add 10/54 and 21/63

10/54 + 21/63 is 14/27.

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,
    10/54 = 10 × 7/54 × 7 = 70/378
  3. Likewise, for the 2nd fraction, since 63 × 6 = 378,
    21/63 = 21 × 6/63 × 6 = 126/378
  4. Add the two like fractions:
    70/378 + 126/378 = 70 + 126/378 = 196/378
  5. 196/378 simplified gives 14/27
  6. So, 10/54 + 21/63 = 14/27

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