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Subtract 15/12 from 8/45

1st number: 8/45, 2nd number: 1 3/12

8/45 - 15/12 is -193/180.

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,
    8/45 = 8 × 4/45 × 4 = 32/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    15/12 = 15 × 15/12 × 15 = 225/180
  4. Subtract the two like fractions:
    32/180 - 225/180 = 32 - 225/180 = -193/180

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