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Subtract 90/60 from 30/15

1st number: 2 0/15, 2nd number: 1 30/60

30/15 - 90/60 is 1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 60 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    30/15 = 30 × 4/15 × 4 = 120/60
  3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
    90/60 = 90 × 1/60 × 1 = 90/60
  4. Subtract the two fractions:
    120/60 - 90/60 = 120 - 90/60 = 30/60
  5. After reducing the fraction, the answer is 1/2

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