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Subtract 6/72 from 1/30

1/30 - 6/72 is -1/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 30 × 12 = 360,
    1/30 = 1 × 12/30 × 12 = 12/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    6/72 = 6 × 5/72 × 5 = 30/360
  4. Subtract the two like fractions:
    12/360 - 30/360 = 12 - 30/360 = -18/360
  5. After reducing the fraction, the answer is -1/20

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