Solve the equation: (3/5)x+(2/5)x=(1/3).
解方程：(3/5)x+(2/5)x=(1/3)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) + (2/5)</gadget>
<output>1</output>

<gadget id="calculator">(1/3) / 1</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>