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Subtract 72/18 from 7/3

1st number: 2 1/3, 2nd number: 4 0/18

7/3 - 72/18 is -5/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 18 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 3 × 6 = 18,
    7/3 = 7 × 6/3 × 6 = 42/18
  3. Likewise, for the 2nd fraction, since 18 × 1 = 18,
    72/18 = 72 × 1/18 × 1 = 72/18
  4. Subtract the two like fractions:
    42/18 - 72/18 = 42 - 72/18 = -30/18
  5. After reducing the fraction, the answer is -5/3

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