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Subtract 1/18 from 42/48

42/48 - 1/18 is 59/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 18 is 144

    Next, find the equivalent fraction of both fractional numbers with denominator 144
  2. For the 1st fraction, since 48 × 3 = 144,
    42/48 = 42 × 3/48 × 3 = 126/144
  3. Likewise, for the 2nd fraction, since 18 × 8 = 144,
    1/18 = 1 × 8/18 × 8 = 8/144
  4. Subtract the two like fractions:
    126/144 - 8/144 = 126 - 8/144 = 118/144
  5. After reducing the fraction, the answer is 59/72

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