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What is the multiplicative inverse (reciprocal) of ?

Competition practiceNumber & Arithmetic
  • A−7/3
  • B7/3
  • C3/7
  • D−3/7

Step-by-Step Solution

The reciprocal of a/b is b/a, keeping the sign. The reciprocal of −3/7 is −7/3, since (−3/7) × (−7/3) = 1.
Answer: A) −7/3

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