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Subtract 18/90 from 8/14

8/14 - 18/90 is 13/35.

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,
    8/14 = 8 × 45/14 × 45 = 360/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    18/90 = 18 × 7/90 × 7 = 126/630
  4. Subtract the two like fractions:
    360/630 - 126/630 = 360 - 126/630 = 234/630
  5. After reducing the fraction, the answer is 13/35

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