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Subtract 54/64 from 1/20

1/20 - 54/64 is -127/160.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 20 × 16 = 320,
    1/20 = 1 × 16/20 × 16 = 16/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    54/64 = 54 × 5/64 × 5 = 270/320
  4. Subtract the two like fractions:
    16/320 - 270/320 = 16 - 270/320 = -254/320
  5. After reducing the fraction, the answer is -127/160

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