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Subtract 1/15 from 84/18

1st number: 4 12/18, 2nd number: 1/15

84/18 - 1/15 is 23/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    84/18 = 84 × 5/18 × 5 = 420/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    1/15 = 1 × 6/15 × 6 = 6/90
  4. Subtract the two like fractions:
    420/90 - 6/90 = 420 - 6/90 = 414/90
  5. After reducing the fraction, the answer is 23/5
  6. In mixed form: 43/5

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