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Subtract 3/21 from 7/25

7/25 - 3/21 is 24/175.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 21 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 25 × 21 = 525,
    7/25 = 7 × 21/25 × 21 = 147/525
  3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
    3/21 = 3 × 25/21 × 25 = 75/525
  4. Subtract the two like fractions:
    147/525 - 75/525 = 147 - 75/525 = 72/525
  5. After reducing the fraction, the answer is 24/175

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