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Subtract 90/6 from 18/30

1st number: 18/30, 2nd number: 15 0/6

18/30 - 90/6 is -72/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 6 is 30
  2. For the 1st fraction, since 30 × 1 = 30,
    18/30 = 18 × 1/30 × 1 = 18/30
  3. Likewise, for the 2nd fraction, since 6 × 5 = 30,
    90/6 = 90 × 5/6 × 5 = 450/30
  4. Subtract the two fractions:
    18/30 - 450/30 = 18 - 450/30 = -432/30
  5. After reducing the fraction, the answer is -72/5

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