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Subtract 63/42 from 8/4

1st number: 2 0/4, 2nd number: 1 21/42

8/4 - 63/42 is 1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    8/4 = 8 × 21/4 × 21 = 168/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    63/42 = 63 × 2/42 × 2 = 126/84
  4. Subtract the two like fractions:
    168/84 - 126/84 = 168 - 126/84 = 42/84
  5. After reducing the fraction, the answer is 1/2

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