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Subtract 90/36 from 30/75

1st number: 30/75, 2nd number: 2 18/36

30/75 - 90/36 is -21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 36 is 900

    Next, find the equivalent fraction of both fractional numbers with denominator 900
  2. For the 1st fraction, since 75 × 12 = 900,
    30/75 = 30 × 12/75 × 12 = 360/900
  3. Likewise, for the 2nd fraction, since 36 × 25 = 900,
    90/36 = 90 × 25/36 × 25 = 2250/900
  4. Subtract the two like fractions:
    360/900 - 2250/900 = 360 - 2250/900 = -1890/900
  5. After reducing the fraction, the answer is -21/10

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