How much does one have to subtract from $$\frac{8}{5}$$​ to obtain $$\frac{5}{8}$$ ?

Correct option is B

Given:

How much does one have to subtract from $$\frac{8}{5}$$​ to obtain $$\frac{5}{8}$$

​​Solution:

Let x be the number.

$$\frac{8}{5} -x = \frac{5}{8}$$​

x = $$\frac{8}{5} - \frac{5}{8}$$​

x =$$\frac{64- 25}{40} = \frac{39}{40}$$​