1 1/9 as a reciprocal

Reciprocal is just the inverse form a fraction.

For example a/b, the reciprocal is equal to b/a

The question has a fraction of 1 1/9, first we need to convert to improper fraction.

1 1/9 = 10 / 9

The reciprocal of 10 / 9 is equal to 9/10.