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Subtract 20/27 from 42/9

1st number: 4 6/9, 2nd number: 20/27

42/9 - 20/27 is 106/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 27 is 27

    Next, find the equivalent fraction of both fractional numbers with denominator 27
  2. For the 1st fraction, since 9 × 3 = 27,
    42/9 = 42 × 3/9 × 3 = 126/27
  3. Likewise, for the 2nd fraction, since 27 × 1 = 27,
    20/27 = 20 × 1/27 × 1 = 20/27
  4. Subtract the two like fractions:
    126/27 - 20/27 = 126 - 20/27 = 106/27
  5. In mixed form: 325/27

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