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Subtract 20/54 from 60/42

1st number: 1 18/42, 2nd number: 20/54

60/42 - 20/54 is 200/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 42 × 9 = 378,
    60/42 = 60 × 9/42 × 9 = 540/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    20/54 = 20 × 7/54 × 7 = 140/378
  4. Subtract the two like fractions:
    540/378 - 140/378 = 540 - 140/378 = 400/378
  5. After reducing the fraction, the answer is 200/189
  6. In mixed form: 111/189

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