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What is the standard form of a rational number?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

A rational number p/q is in standard form when:

  1. The denominator q is positive
  2. p and q have no common divisor except 1 (they are co-prime)
  3. The fraction is in its simplest/lowest form

Examples:

  • 2/3 is in standard form
  • -4/6 is NOT in standard form (can be simplified to -2/3)
  • 3/-5 is NOT in standard form (denominator should be positive: -3/5)
General · Class 12