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Subtract 9/18 from 70/42

1st number: 1 28/42, 2nd number: 9/18

70/42 - 9/18 is 7/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    70/42 = 70 × 3/42 × 3 = 210/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    9/18 = 9 × 7/18 × 7 = 63/126
  4. Subtract the two like fractions:
    210/126 - 63/126 = 210 - 63/126 = 147/126
  5. After reducing the fraction, the answer is 7/6
  6. In mixed form: 11/6

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