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Subtract 3/14 from 7/90

7/90 - 3/14 is -43/315.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    7/90 = 7 × 7/90 × 7 = 49/630
  3. Likewise, for the 2nd fraction, since 14 × 45 = 630,
    3/14 = 3 × 45/14 × 45 = 135/630
  4. Subtract the two like fractions:
    49/630 - 135/630 = 49 - 135/630 = -86/630
  5. After reducing the fraction, the answer is -43/315

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