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Subtract 42/45 from 12/3

1st number: 4 0/3, 2nd number: 42/45

12/3 - 42/45 is 46/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 45 is 45
  2. For the 1st fraction, since 3 × 15 = 45,
    12/3 = 12 × 15/3 × 15 = 180/45
  3. Likewise, for the 2nd fraction, since 45 × 1 = 45,
    42/45 = 42 × 1/45 × 1 = 42/45
  4. Subtract the two fractions:
    180/45 - 42/45 = 180 - 42/45 = 138/45
  5. After reducing the fraction, the answer is 46/15
  6. In mixed form: 31/15

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