javascript - jquery multiplication with broken numbers -

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i coded price * qty function jquery not responding daily prices. response decimal numbers.

here code;

 var qty = "3";  var price = "1.20";  var res = (qty*price);  $("#boxres").html(res);

they result 3.5999999999999996

i want 3.6 how can fix ?

try 

$("#boxres").html(res.tofixed(1));

http://jsfiddle.net/dfz0bj3z/


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