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Subtract 30/48 from 3/15

3/15 - 30/48 is -17/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 48 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 15 × 16 = 240,
    3/15 = 3 × 16/15 × 16 = 48/240
  3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
    30/48 = 30 × 5/48 × 5 = 150/240
  4. Subtract the two like fractions:
    48/240 - 150/240 = 48 - 150/240 = -102/240
  5. After reducing the fraction, the answer is -17/40

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