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Subtract 80/9 from 49/20

1st number: 2 9/20, 2nd number: 8 8/9

49/20 - 80/9 is -1159/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    49/20 = 49 × 9/20 × 9 = 441/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    80/9 = 80 × 20/9 × 20 = 1600/180
  4. Subtract the two fractions:
    441/180 - 1600/180 = 441 - 1600/180 = -1159/180

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