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Subtract 18/60 from 5/45

5/45 - 18/60 is -17/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 60 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    5/45 = 5 × 4/45 × 4 = 20/180
  3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
    18/60 = 18 × 3/60 × 3 = 54/180
  4. Subtract the two like fractions:
    20/180 - 54/180 = 20 - 54/180 = -34/180
  5. After reducing the fraction, the answer is -17/90

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