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Subtract 27/8 from 9/40

1st number: 9/40, 2nd number: 3 3/8

9/40 - 27/8 is -63/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 40 × 1 = 40,
    9/40 = 9 × 1/40 × 1 = 9/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    27/8 = 27 × 5/8 × 5 = 135/40
  4. Subtract the two like fractions:
    9/40 - 135/40 = 9 - 135/40 = -126/40
  5. After reducing the fraction, the answer is -63/20

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