Question

The product of a number and its blank is one

Answer 1

The answer is reciprocal.

The reciprocal of a number is any fraction flipped. The numerator becomes the denominator and the denominator becomes the numerator. If you are dealing with a whole number, it's reciprocal will have a one in the numerator.

Here are two examples:


`7* (1)/(7) = (7*1)/(1*7) = (7)/(7)=1`


`(5)/(8) * (8)/(5) = (5*8)/(8*5) = (40)/(40)=1`