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Subtract 27/8 from 20/36

1st number: 20/36, 2nd number: 3 3/8

20/36 - 27/8 is -203/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 36 × 2 = 72,
    20/36 = 20 × 2/36 × 2 = 40/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    27/8 = 27 × 9/8 × 9 = 243/72
  4. Subtract the two like fractions:
    40/72 - 243/72 = 40 - 243/72 = -203/72

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