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Subtract 3/20 from 7/64

7/64 - 3/20 is -13/320.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 20 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 64 × 5 = 320,
    7/64 = 7 × 5/64 × 5 = 35/320
  3. Likewise, for the 2nd fraction, since 20 × 16 = 320,
    3/20 = 3 × 16/20 × 16 = 48/320
  4. Subtract the two like fractions:
    35/320 - 48/320 = 35 - 48/320 = -13/320

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