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Subtract 42/48 from 3/5

3/5 - 42/48 is -11/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 48 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 5 × 48 = 240,
    3/5 = 3 × 48/5 × 48 = 144/240
  3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
    42/48 = 42 × 5/48 × 5 = 210/240
  4. Subtract the two like fractions:
    144/240 - 210/240 = 144 - 210/240 = -66/240
  5. After reducing the fraction, the answer is -11/40

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