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Subtract 3/8 from 7/72

7/72 - 3/8 is -5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 72 × 1 = 72,
    7/72 = 7 × 1/72 × 1 = 7/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    3/8 = 3 × 9/8 × 9 = 27/72
  4. Subtract the two like fractions:
    7/72 - 27/72 = 7 - 27/72 = -20/72
  5. After reducing the fraction, the answer is -5/18

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