What is the Geometric mean of 2/3 and 27/40 and how do u find it?

The geometric mean of two non negative numbers x and y is √ (xy). (mean square root of XY)

So the geometric mean of 2/3 and 27/40 is

√ (2/3 * 27/40)

= √ (54 / 120)

= √ (27 / 60)

= √ (9 / 20)

= 3 / √20

= 3 / 2√5

= 3√5 / 10.

2/3 is the after that * 10 by it