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Subtract 18/64 from 4/45

4/45 - 18/64 is -277/1440.

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,
    4/45 = 4 × 64/45 × 64 = 256/2880
  3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
    18/64 = 18 × 45/64 × 45 = 810/2880
  4. Subtract the two like fractions:
    256/2880 - 810/2880 = 256 - 810/2880 = -554/2880
  5. After reducing the fraction, the answer is -277/1440

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