6th Grade · The Number System

Reciprocal

6.NS.A.1

Definition

The fraction you get by flipping the numerator and denominator; a number times its reciprocal equals 1.

Examples

  • The reciprocal of 3/4 is 4/3, because 3/4 × 4/3 = 1.
  • Flip the fraction to find its reciprocal.

Key rule

A number times its reciprocal always equals 1.

Memory hook

Flip the fraction upside down.