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Subtract 15/45 from 1/4

1/4 - 15/45 is -1/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    1/4 = 1 × 45/4 × 45 = 45/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    15/45 = 15 × 4/45 × 4 = 60/180
  4. Subtract the two like fractions:
    45/180 - 60/180 = 45 - 60/180 = -15/180
  5. After reducing the fraction, the answer is -1/12

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