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Subtract 42/6 from 30/84

1st number: 30/84, 2nd number: 7 0/6

30/84 - 42/6 is -93/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 6 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 84 × 1 = 84,
    30/84 = 30 × 1/84 × 1 = 30/84
  3. Likewise, for the 2nd fraction, since 6 × 14 = 84,
    42/6 = 42 × 14/6 × 14 = 588/84
  4. Subtract the two like fractions:
    30/84 - 588/84 = 30 - 588/84 = -558/84
  5. After reducing the fraction, the answer is -93/14

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