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Subtract 20/42 from 84/32

1st number: 2 20/32, 2nd number: 20/42

84/32 - 20/42 is 361/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 42 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 32 × 21 = 672,
    84/32 = 84 × 21/32 × 21 = 1764/672
  3. Likewise, for the 2nd fraction, since 42 × 16 = 672,
    20/42 = 20 × 16/42 × 16 = 320/672
  4. Subtract the two like fractions:
    1764/672 - 320/672 = 1764 - 320/672 = 1444/672
  5. After reducing the fraction, the answer is 361/168
  6. In mixed form: 225/168

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