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Subtract 1/7 from 18/28

18/28 - 1/7 is 1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 7 is 28
  2. For the 1st fraction, since 28 × 1 = 28,
    18/28 = 18 × 1/28 × 1 = 18/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    1/7 = 1 × 4/7 × 4 = 4/28
  4. Subtract the two fractions:
    18/28 - 4/28 = 18 - 4/28 = 14/28
  5. After reducing the fraction, the answer is 1/2

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