Multiplying a number by its reciprocal (the "multiplicative inverse") is always one.
a × (1/a) = 1
Example: 8 × (1/8) = 1
But not when the number is 0 because 1/0 is undefined!
a × (1/a) = 1
Example: 8 × (1/8) = 1
But not when the number is 0 because 1/0 is undefined!
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