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Subtract 20/42 from 45/6

1st number: 7 3/6, 2nd number: 20/42

45/6 - 20/42 is 295/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 6 × 7 = 42,
    45/6 = 45 × 7/6 × 7 = 315/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    20/42 = 20 × 1/42 × 1 = 20/42
  4. Subtract the two like fractions:
    315/42 - 20/42 = 315 - 20/42 = 295/42
  5. In mixed form: 71/42

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