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Subtract 40/9 from 27/8

1st number: 3 3/8, 2nd number: 4 4/9

27/8 - 40/9 is -77/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    27/8 = 27 × 9/8 × 9 = 243/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    40/9 = 40 × 8/9 × 8 = 320/72
  4. Subtract the two like fractions:
    243/72 - 320/72 = 243 - 320/72 = -77/72

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