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Subtract 60/84 from 70/42

1st number: 1 28/42, 2nd number: 60/84

70/42 - 60/84 is 20/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    70/42 = 70 × 2/42 × 2 = 140/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    60/84 = 60 × 1/84 × 1 = 60/84
  4. Subtract the two like fractions:
    140/84 - 60/84 = 140 - 60/84 = 80/84
  5. After reducing the fraction, the answer is 20/21

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