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Subtract 16/72 from 1/30

1/30 - 16/72 is -17/90.

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,
    16/72 = 16 × 5/72 × 5 = 80/360
  4. Subtract the two like fractions:
    12/360 - 80/360 = 12 - 80/360 = -68/360
  5. After reducing the fraction, the answer is -17/90

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