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Subtract 42/54 from 42/60

42/60 - 42/54 is -7/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 54 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 60 × 9 = 540,
    42/60 = 42 × 9/60 × 9 = 378/540
  3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
    42/54 = 42 × 10/54 × 10 = 420/540
  4. Subtract the two like fractions:
    378/540 - 420/540 = 378 - 420/540 = -42/540
  5. After reducing the fraction, the answer is -7/90

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