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Subtract 4/90 from 15/2

1st number: 7 1/2, 2nd number: 4/90

15/2 - 4/90 is 671/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 2 × 45 = 90,
    15/2 = 15 × 45/2 × 45 = 675/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    4/90 = 4 × 1/90 × 1 = 4/90
  4. Subtract the two like fractions:
    675/90 - 4/90 = 675 - 4/90 = 671/90
  5. In mixed form: 741/90

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