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Subtract 63/90 from 84/75

1st number: 1 9/75, 2nd number: 63/90

84/75 - 63/90 is 21/50.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 75 × 6 = 450,
    84/75 = 84 × 6/75 × 6 = 504/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    63/90 = 63 × 5/90 × 5 = 315/450
  4. Subtract the two like fractions:
    504/450 - 315/450 = 504 - 315/450 = 189/450
  5. After reducing the fraction, the answer is 21/50

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