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Subtract 27/10 from 90/5

1st number: 18 0/5, 2nd number: 2 7/10

90/5 - 27/10 is 153/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 10 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 5 × 2 = 10,
    90/5 = 90 × 2/5 × 2 = 180/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    27/10 = 27 × 1/10 × 1 = 27/10
  4. Subtract the two like fractions:
    180/10 - 27/10 = 180 - 27/10 = 153/10
  5. In mixed form: 153/10

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