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Subtract 30/50 from 75/42

1st number: 1 33/42, 2nd number: 30/50

75/42 - 30/50 is 83/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 50 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 42 × 25 = 1050,
    75/42 = 75 × 25/42 × 25 = 1875/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    30/50 = 30 × 21/50 × 21 = 630/1050
  4. Subtract the two like fractions:
    1875/1050 - 630/1050 = 1875 - 630/1050 = 1245/1050
  5. After reducing the fraction, the answer is 83/70
  6. In mixed form: 113/70

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