Reciprocals Aqa Foundation

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Exam code:8300

Reciprocals

The reciprocal of a number is the result of dividing 1 by that number
- Any number multiplied by its reciprocal will be equal to 1
The reciprocal of 3 is $1 third$
- The reciprocal of $1 third$ is 3
- $3 cross times 1 third equals 1 third cross times 3 equals 1$
The reciprocal of $2 over 3$ is $3 over 2$
- The reciprocal of $3 over 2$ is $2 over 3$
- $2 over 3 cross times 3 over 2 equals 3 over 2 cross times 2 over 3 equals 1$
Algebraically the reciprocal of $a$ is $1 over a$
- The reciprocal of $1 over a$ is <img alt=”a” data-mathml=”<math ><semantics><mi>a</mi><annotation encoding=”application/vnd.wiris.mtweb-params+json”>{“fontFamily”:”Times New Roman”,”fontSize”:”18″,”autoformat”:true,”toolbar”:&quot