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Subtract 35/40 from 42/50

42/50 - 35/40 is -7/200.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 40 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 50 × 4 = 200,
    42/50 = 42 × 4/50 × 4 = 168/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    35/40 = 35 × 5/40 × 5 = 175/200
  4. Subtract the two like fractions:
    168/200 - 175/200 = 168 - 175/200 = -7/200

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