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Add 42/64 and 9/75

42/64 + 9/75 is 621/800.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 75 is 4800

    Next, find the equivalent fraction of both fractional numbers with denominator 4800
  2. For the 1st fraction, since 64 × 75 = 4800,
    42/64 = 42 × 75/64 × 75 = 3150/4800
  3. Likewise, for the 2nd fraction, since 75 × 64 = 4800,
    9/75 = 9 × 64/75 × 64 = 576/4800
  4. Add the two like fractions:
    3150/4800 + 576/4800 = 3150 + 576/4800 = 3726/4800
  5. 3726/4800 simplified gives 621/800
  6. So, 42/64 + 9/75 = 621/800

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