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Subtract 4/64 from 20/18

1st number: 1 2/18, 2nd number: 4/64

20/18 - 4/64 is 151/144.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 64 is 576

    Next, find the equivalent fraction of both fractional numbers with denominator 576
  2. For the 1st fraction, since 18 × 32 = 576,
    20/18 = 20 × 32/18 × 32 = 640/576
  3. Likewise, for the 2nd fraction, since 64 × 9 = 576,
    4/64 = 4 × 9/64 × 9 = 36/576
  4. Subtract the two like fractions:
    640/576 - 36/576 = 640 - 36/576 = 604/576
  5. After reducing the fraction, the answer is 151/144
  6. In mixed form: 17/144

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