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Add 20/75 and 42/64

20/75 + 42/64 is 443/480.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 4800
  2. For the 1st fraction, since 75 × 64 = 4800,
    20/75 = 20 × 64/75 × 64 = 1280/4800
  3. Likewise, for the 2nd fraction, since 64 × 75 = 4800,
    42/64 = 42 × 75/64 × 75 = 3150/4800
  4. Add the two like fractions:
    1280/4800 + 3150/4800 = 1280 + 3150/4800 = 4430/4800
  5. 4430/4800 simplified gives 443/480
  6. So, 20/75 + 42/64 = 443/480

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