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Subtract 42/60 from 1/27

1/27 - 42/60 is -179/270.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 60 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    1/27 = 1 × 20/27 × 20 = 20/540
  3. Likewise, for the 2nd fraction, since 60 × 9 = 540,
    42/60 = 42 × 9/60 × 9 = 378/540
  4. Subtract the two like fractions:
    20/540 - 378/540 = 20 - 378/540 = -358/540
  5. After reducing the fraction, the answer is -179/270

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