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Subtract 15/90 from 8/14

8/14 - 15/90 is 17/42.

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,
    15/90 = 15 × 7/90 × 7 = 105/630
  4. Subtract the two like fractions:
    360/630 - 105/630 = 360 - 105/630 = 255/630
  5. After reducing the fraction, the answer is 17/42

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