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Subtract 30/7 from 14/42

1st number: 14/42, 2nd number: 4 2/7

14/42 - 30/7 is -83/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 7 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    14/42 = 14 × 1/42 × 1 = 14/42
  3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
    30/7 = 30 × 6/7 × 6 = 180/42
  4. Subtract the two like fractions:
    14/42 - 180/42 = 14 - 180/42 = -166/42
  5. After reducing the fraction, the answer is -83/21

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