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Subtract 20/5 from 49/45

1st number: 1 4/45, 2nd number: 4 0/5

49/45 - 20/5 is -131/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 5 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 45 × 1 = 45,
    49/45 = 49 × 1/45 × 1 = 49/45
  3. Likewise, for the 2nd fraction, since 5 × 9 = 45,
    20/5 = 20 × 9/5 × 9 = 180/45
  4. Subtract the two like fractions:
    49/45 - 180/45 = 49 - 180/45 = -131/45

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