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Subtract 27/75 from 28/70

28/70 - 27/75 is 1/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 75 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 70 × 15 = 1050,
    28/70 = 28 × 15/70 × 15 = 420/1050
  3. Likewise, for the 2nd fraction, since 75 × 14 = 1050,
    27/75 = 27 × 14/75 × 14 = 378/1050
  4. Subtract the two like fractions:
    420/1050 - 378/1050 = 420 - 378/1050 = 42/1050
  5. After reducing the fraction, the answer is 1/25

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