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Subtract 4/5 from 49/80

49/80 - 4/5 is -3/16.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    49/80 = 49 × 1/80 × 1 = 49/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    4/5 = 4 × 16/5 × 16 = 64/80
  4. Subtract the two like fractions:
    49/80 - 64/80 = 49 - 64/80 = -15/80
  5. After reducing the fraction, the answer is -3/16

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