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Subtract 15/45 from 1/30

1/30 - 15/45 is -3/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    1/30 = 1 × 3/30 × 3 = 3/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    15/45 = 15 × 2/45 × 2 = 30/90
  4. Subtract the two like fractions:
    3/90 - 30/90 = 3 - 30/90 = -27/90
  5. After reducing the fraction, the answer is -3/10

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