9/10 as a unit fraction

A unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer. A unit fraction is therefore the reciprocal of a positive integer, 1/n. Examples are 1/1, 1/2, 1/3, 1/4,1/5, etc.

Show the unit fraction for the following fraction:

9/10

The unit fraction is written using a numerator of 1 and keeping the original denominator:

1 / 10