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Subtract 7/45 from 5/18

5/18 - 7/45 is 11/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 45 is 90
  2. For the 1st fraction, since 18 × 5 = 90,
    5/18 = 5 × 5/18 × 5 = 25/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    7/45 = 7 × 2/45 × 2 = 14/90
  4. Subtract the two fractions:
    25/90 - 14/90 = 25 - 14/90 = 11/90

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