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Subtract 3/6 from 42/45

42/45 - 3/6 is 13/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 6 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    42/45 = 42 × 2/45 × 2 = 84/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    3/6 = 3 × 15/6 × 15 = 45/90
  4. Subtract the two like fractions:
    84/90 - 45/90 = 84 - 45/90 = 39/90
  5. After reducing the fraction, the answer is 13/30

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