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Subtract 90/20 from 5/15

1st number: 5/15, 2nd number: 4 10/20

5/15 - 90/20 is -25/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    5/15 = 5 × 4/15 × 4 = 20/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    90/20 = 90 × 3/20 × 3 = 270/60
  4. Subtract the two like fractions:
    20/60 - 270/60 = 20 - 270/60 = -250/60
  5. After reducing the fraction, the answer is -25/6

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