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Subtract 18/10 from 4/5

1st number: 4/5, 2nd number: 1 8/10

4/5 - 18/10 is -1/1.

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,
    4/5 = 4 × 2/5 × 2 = 8/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    18/10 = 18 × 1/10 × 1 = 18/10
  4. Subtract the two like fractions:
    8/10 - 18/10 = 8 - 18/10 = -10/10
  5. After reducing the fraction, the answer is -1/1

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