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Subtract 7/30 from 42/12

1st number: 3 6/12, 2nd number: 7/30

42/12 - 7/30 is 49/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 30 is 60
  2. For the 1st fraction, since 12 × 5 = 60,
    42/12 = 42 × 5/12 × 5 = 210/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    7/30 = 7 × 2/30 × 2 = 14/60
  4. Subtract the two fractions:
    210/60 - 14/60 = 210 - 14/60 = 196/60
  5. After reducing the fraction, the answer is 49/15
  6. In mixed form: 34/15

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