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Subtract 6/12 from 12/45

12/45 - 6/12 is -7/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    12/45 = 12 × 4/45 × 4 = 48/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    6/12 = 6 × 15/12 × 15 = 90/180
  4. Subtract the two like fractions:
    48/180 - 90/180 = 48 - 90/180 = -42/180
  5. After reducing the fraction, the answer is -7/30

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