Adding floats with javascript

I'm using jQuery, and I want to sum up the values in my table column, everything seems to work fine, but my value is returned a string with all the values added like: 123.5013.0012.35

How can I sum these properly?

var totals

$(".add").each(function(i) {
  totals += parseFloat($(this).text()).toFixed(2);
});

console.log(totals);