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Subtract 3/45 from 18/12

1st number: 1 6/12, 2nd number: 3/45

18/12 - 3/45 is 43/30.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    18/12 = 18 × 15/12 × 15 = 270/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    3/45 = 3 × 4/45 × 4 = 12/180
  4. Subtract the two like fractions:
    270/180 - 12/180 = 270 - 12/180 = 258/180
  5. After reducing the fraction, the answer is 43/30
  6. In mixed form: 113/30

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