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Subtract 15/63 from 1/5

1/5 - 15/63 is -4/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 5 × 63 = 315,
    1/5 = 1 × 63/5 × 63 = 63/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    15/63 = 15 × 5/63 × 5 = 75/315
  4. Subtract the two like fractions:
    63/315 - 75/315 = 63 - 75/315 = -12/315
  5. After reducing the fraction, the answer is -4/105

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