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Subtract 4/5 from 9/16

9/16 - 4/5 is -19/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 5 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    9/16 = 9 × 5/16 × 5 = 45/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    4/5 = 4 × 16/5 × 16 = 64/80
  4. Subtract the two like fractions:
    45/80 - 64/80 = 45 - 64/80 = -19/80

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