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Subtract 1/75 from 12/21

12/21 - 1/75 is 293/525.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 75 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 21 × 25 = 525,
    12/21 = 12 × 25/21 × 25 = 300/525
  3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
    1/75 = 1 × 7/75 × 7 = 7/525
  4. Subtract the two like fractions:
    300/525 - 7/525 = 300 - 7/525 = 293/525

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