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Subtract 5/12 from 42/80

42/80 - 5/12 is 13/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 12 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    42/80 = 42 × 3/80 × 3 = 126/240
  3. Likewise, for the 2nd fraction, since 12 × 20 = 240,
    5/12 = 5 × 20/12 × 20 = 100/240
  4. Subtract the two like fractions:
    126/240 - 100/240 = 126 - 100/240 = 26/240
  5. After reducing the fraction, the answer is 13/120

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