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Subtract 7/27 from 9/45

9/45 - 7/27 is -8/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135

    Next, find the equivalent fraction of both fractional numbers with denominator 135
  2. For the 1st fraction, since 45 × 3 = 135,
    9/45 = 9 × 3/45 × 3 = 27/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    7/27 = 7 × 5/27 × 5 = 35/135
  4. Subtract the two like fractions:
    27/135 - 35/135 = 27 - 35/135 = -8/135

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