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Subtract 6/80 from 21/25

21/25 - 6/80 is 153/200.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 80 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 25 × 16 = 400,
    21/25 = 21 × 16/25 × 16 = 336/400
  3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
    6/80 = 6 × 5/80 × 5 = 30/400
  4. Subtract the two like fractions:
    336/400 - 30/400 = 336 - 30/400 = 306/400
  5. After reducing the fraction, the answer is 153/200

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