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Subtract 18/21 from 10/6

1st number: 1 4/6, 2nd number: 18/21

10/6 - 18/21 is 17/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 6 × 7 = 42,
    10/6 = 10 × 7/6 × 7 = 70/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    18/21 = 18 × 2/21 × 2 = 36/42
  4. Subtract the two like fractions:
    70/42 - 36/42 = 70 - 36/42 = 34/42
  5. After reducing the fraction, the answer is 17/21

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