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Subtract 84/90 from 4/14

4/14 - 84/90 is -68/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 14 × 45 = 630,
    4/14 = 4 × 45/14 × 45 = 180/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    84/90 = 84 × 7/90 × 7 = 588/630
  4. Subtract the two like fractions:
    180/630 - 588/630 = 180 - 588/630 = -408/630
  5. After reducing the fraction, the answer is -68/105

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