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Subtract 18/84 from 90/56

1st number: 1 34/56, 2nd number: 18/84

90/56 - 18/84 is 39/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    90/56 = 90 × 3/56 × 3 = 270/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    18/84 = 18 × 2/84 × 2 = 36/168
  4. Subtract the two like fractions:
    270/168 - 36/168 = 270 - 36/168 = 234/168
  5. After reducing the fraction, the answer is 39/28
  6. In mixed form: 111/28

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