What is the sum of (1/15) plus the product of (4/5) and (2/3)?
(1/15)加上(4/5)与(2/3)的积，和是多少？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(4/5) * (2/3)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">(1/15) + (8/15)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>