Solve the equation: (4/15)x=(8/35).
解方程：(4/15)x=(8/35)．
<gadget id="calculator">8 / 35</gadget>
<output>8/35 = around 0.228571</output>

<gadget id="calculator">4 / 15</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(8/35) / (4/15)</gadget>
<output>6/7 = around 0.857143</output>

<result>6/7 = around 0.857143</result>