Question

product of two rational number is 1 if one of them is 2/5 then other is​

Answer 1

Answer:

5/2.

is a answer please give me some thanks

Answer 2

Step-by-step explanation:

Let

• The other = x

→ x × $\frac{2}{5}$ = 1

$x = \frac{1}{ \frac{2}{5} }$

→ x = 1 × $\frac{ 5 }{ 2 }$

→ x = $\frac{ 5 }{ 2 }$

P R O O F :-

Substitute "x" value

• $\frac{5}{2}$ × $\frac{ 2 }{5}$ = 1

Cancel "2" & "5"

:. LHS = RHS