![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b38a52d0540bc49b38b1378f648c4efe.png\")
Place value chart for 1.3 and 2.6.
\Line up the decimal points and draw a line below the numbers.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4606f03c341f0cc9698ea46d872cf08c.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
First find the sum of the tenths digit.
\The sum of the tenths digit = 3 + 6 = 9.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7489de73af097843a4f2ce98a6314cf8.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Next find the sum of the ones digit.
\The sum of the ones digit = 1 + 2 = 3.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=298e0bb62bef08ac8d07af17e501e42f.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The sum is 3.9. \ \