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Subtract 9/64 from 20/30

20/30 - 9/64 is 101/192.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 960
  2. For the 1st fraction, since 30 × 32 = 960,
    20/30 = 20 × 32/30 × 32 = 640/960
  3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
    9/64 = 9 × 15/64 × 15 = 135/960
  4. Subtract the two like fractions:
    640/960 - 135/960 = 640 - 135/960 = 505/960
  5. After reducing the fraction, the answer is 101/192

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