Question

What percentage is equal to 2/5?

Answer 1

40%

Because, 2/5 equals 4/10. 10x10=100, so 4x10=40, so 40%.

Answer 2

The answer is:  "40%" .
___________________________________________________
Explanation:
___________________________________________________

2/5 = x/ 100 ; Solve for "x" ;

Looking at the denominators:

5*(what value) = 100 ?  ;   100÷ 5 = 20 ;

So "5*20 = 100" .

So; "2/5 = (2*20)/(5*20) = 40/100 = 40% .

→ Since:  40% = 40/100 = 4/10 = (4÷2)/(10÷2) = 2/5 .
____________________________________________
Alternate method:
____________________________________________
2/5 = 2÷5 = 0.4 .

0.4 = 4/10 = =(4*10)/(10*10) = 40/100 = 40% .
____________________________________________
Alternate method:
____________________________________________
Given:  "2/5" ;  We look at the denominator and notice it is "5" ; and we known that "5*2" = 10" ;

So, "2/5" = (2*2)/ (5*2) = 4/10 = (4*10)/(10*10) = 40/100 = 40% .
____________________________________________