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Subtract 49/45 from 45/80

1st number: 45/80, 2nd number: 1 4/45

45/80 - 49/45 is -379/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 45 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    45/80 = 45 × 9/80 × 9 = 405/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    49/45 = 49 × 16/45 × 16 = 784/720
  4. Subtract the two like fractions:
    405/720 - 784/720 = 405 - 784/720 = -379/720

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