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Subtract 1/64 from 84/21

1st number: 4 0/21, 2nd number: 1/64

84/21 - 1/64 is 255/64.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 64 is 1344

    Next, find the equivalent fraction of both fractional numbers with denominator 1344
  2. For the 1st fraction, since 21 × 64 = 1344,
    84/21 = 84 × 64/21 × 64 = 5376/1344
  3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
    1/64 = 1 × 21/64 × 21 = 21/1344
  4. Subtract the two like fractions:
    5376/1344 - 21/1344 = 5376 - 21/1344 = 5355/1344
  5. After reducing the fraction, the answer is 255/64
  6. In mixed form: 363/64

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