Solve the equation: 15x/3=(3/5).
解方程：15x/3=(3/5)．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<gadget id="calculator">(3/5) / 5</gadget>
<output>3/25 = around 0.12</output>

<result>3/25 = around 0.12</result>