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Subtract 3/90 from 1/18

1/18 - 3/90 is 1/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    1/18 = 1 × 5/18 × 5 = 5/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    3/90 = 3 × 1/90 × 1 = 3/90
  4. Subtract the two like fractions:
    5/90 - 3/90 = 5 - 3/90 = 2/90
  5. After reducing the fraction, the answer is 1/45

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