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Subtract 6/90 from 1/7

1/7 - 6/90 is 8/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    1/7 = 1 × 90/7 × 90 = 90/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    6/90 = 6 × 7/90 × 7 = 42/630
  4. Subtract the two like fractions:
    90/630 - 42/630 = 90 - 42/630 = 48/630
  5. After reducing the fraction, the answer is 8/105

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