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Subtract 14/21 from 7/10

7/10 - 14/21 is 1/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    7/10 = 7 × 21/10 × 21 = 147/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    14/21 = 14 × 10/21 × 10 = 140/210
  4. Subtract the two fractions:
    147/210 - 140/210 = 147 - 140/210 = 7/210
  5. After reducing the fraction, the answer is 1/30

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