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Subtract 4/20 from 42/96

42/96 - 4/20 is 19/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 96 and 20 is 480

    Next, find the equivalent fraction of both fractional numbers with denominator 480
  2. For the 1st fraction, since 96 × 5 = 480,
    42/96 = 42 × 5/96 × 5 = 210/480
  3. Likewise, for the 2nd fraction, since 20 × 24 = 480,
    4/20 = 4 × 24/20 × 24 = 96/480
  4. Subtract the two like fractions:
    210/480 - 96/480 = 210 - 96/480 = 114/480
  5. After reducing the fraction, the answer is 19/80

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