8470/140-23*1.9.
8470/140-23*1.9．
<gadget id="calculator">8_470 / 140</gadget>
<output>121/2 = around 60.5</output>

<gadget id="calculator">23 * 1.9</gadget>
<output>43.7</output>

<gadget id="calculator">(121/2) - 43.7</gadget>
<output>16.8</output>

<result>16.8</result>