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Subtract 9/5 from 1/72

1st number: 1/72, 2nd number: 1 4/5

1/72 - 9/5 is -643/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 5 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 5 × 72 = 360,
    9/5 = 9 × 72/5 × 72 = 648/360
  4. Subtract the two like fractions:
    5/360 - 648/360 = 5 - 648/360 = -643/360

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