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Subtract 10/75 from 5/21

5/21 - 10/75 is 11/105.

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,
    5/21 = 5 × 25/21 × 25 = 125/525
  3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
    10/75 = 10 × 7/75 × 7 = 70/525
  4. Subtract the two like fractions:
    125/525 - 70/525 = 125 - 70/525 = 55/525
  5. After reducing the fraction, the answer is 11/105

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