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Subtract 7/45 from 15/12

1st number: 1 3/12, 2nd number: 7/45

15/12 - 7/45 is 197/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 45 is 180
  2. For the 1st fraction, since 12 × 15 = 180,
    15/12 = 15 × 15/12 × 15 = 225/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    7/45 = 7 × 4/45 × 4 = 28/180
  4. Subtract the two fractions:
    225/180 - 28/180 = 225 - 28/180 = 197/180
  5. In mixed form: 117/180

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