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Subtract 3/30 from 20/64

20/64 - 3/30 is 17/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 30 is 960

    Next, find the equivalent fraction of both fractional numbers with denominator 960
  2. For the 1st fraction, since 64 × 15 = 960,
    20/64 = 20 × 15/64 × 15 = 300/960
  3. Likewise, for the 2nd fraction, since 30 × 32 = 960,
    3/30 = 3 × 32/30 × 32 = 96/960
  4. Subtract the two like fractions:
    300/960 - 96/960 = 300 - 96/960 = 204/960
  5. After reducing the fraction, the answer is 17/80

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