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Subtract 9/64 from 20/45

20/45 - 9/64 is 175/576.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 64 is 2880

    Next, find the equivalent fraction of both fractional numbers with denominator 2880
  2. For the 1st fraction, since 45 × 64 = 2880,
    20/45 = 20 × 64/45 × 64 = 1280/2880
  3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
    9/64 = 9 × 45/64 × 45 = 405/2880
  4. Subtract the two like fractions:
    1280/2880 - 405/2880 = 1280 - 405/2880 = 875/2880
  5. After reducing the fraction, the answer is 175/576

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