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Subtract 3/45 from 1/72

1/72 - 3/45 is -19/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    1/72 = 1 × 5/72 × 5 = 5/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    3/45 = 3 × 8/45 × 8 = 24/360
  4. Subtract the two like fractions:
    5/360 - 24/360 = 5 - 24/360 = -19/360

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