#### Answer

$1.21981424148$... or $1\frac{71}{323}$

#### Work Step by Step

Press the following keystrokes on your calculator:
$(, 10, \div, 17, ), +, (, 12, \div, 19, ), =$
Pressing those buttons in the following sequence will solve the following equation:
$\frac{10}{17}+\frac{12}{19}=?$
Your answer should be $1.21981424148$... or $1\frac{71}{323}$