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Subtract 20/25 from 7/15

7/15 - 20/25 is -1/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 25 is 75

    Next, find the equivalent fraction of both fractional numbers with denominator 75
  2. For the 1st fraction, since 15 × 5 = 75,
    7/15 = 7 × 5/15 × 5 = 35/75
  3. Likewise, for the 2nd fraction, since 25 × 3 = 75,
    20/25 = 20 × 3/25 × 3 = 60/75
  4. Subtract the two like fractions:
    35/75 - 60/75 = 35 - 60/75 = -25/75
  5. After reducing the fraction, the answer is -1/3

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