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Subtract 45/5 from 18/4

1st number: 4 2/4, 2nd number: 9 0/5

18/4 - 45/5 is -9/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20
  2. For the 1st fraction, since 4 × 5 = 20,
    18/4 = 18 × 5/4 × 5 = 90/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    45/5 = 45 × 4/5 × 4 = 180/20
  4. Subtract the two fractions:
    90/20 - 180/20 = 90 - 180/20 = -90/20
  5. After reducing the fraction, the answer is -9/2

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