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Subtract 1/54 from 70/42

1st number: 1 28/42, 2nd number: 1/54

70/42 - 1/54 is 89/54.

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,
    70/42 = 70 × 9/42 × 9 = 630/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    1/54 = 1 × 7/54 × 7 = 7/378
  4. Subtract the two like fractions:
    630/378 - 7/378 = 630 - 7/378 = 623/378
  5. After reducing the fraction, the answer is 89/54
  6. In mixed form: 135/54

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