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Subtract 90/18 from 84/15

1st number: 5 9/15, 2nd number: 5 0/18

84/15 - 90/18 is 3/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    84/15 = 84 × 6/15 × 6 = 504/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    90/18 = 90 × 5/18 × 5 = 450/90
  4. Subtract the two fractions:
    504/90 - 450/90 = 504 - 450/90 = 54/90
  5. After reducing the fraction, the answer is 3/5

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