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Subtract 30/27 from 20/45

1st number: 20/45, 2nd number: 1 3/27

20/45 - 30/27 is -2/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135
  2. For the 1st fraction, since 45 × 3 = 135,
    20/45 = 20 × 3/45 × 3 = 60/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    30/27 = 30 × 5/27 × 5 = 150/135
  4. Subtract the two fractions:
    60/135 - 150/135 = 60 - 150/135 = -90/135
  5. After reducing the fraction, the answer is -2/3

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