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Subtract 40/56 from 30/42

30/42 - 40/56 is 0/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 56 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 42 × 4 = 168,
    30/42 = 30 × 4/42 × 4 = 120/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    40/56 = 40 × 3/56 × 3 = 120/168
  4. Subtract the two like fractions:
    120/168 - 120/168 = 120 - 120/168 = 0/168
  5. The answer is 0

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