Solve the equation: x: 28%=(7/4): 0.7.
解方程：x：28%=(7/4)：0.7．
<gadget id="calculator">28 / 100</gadget>
<output>7/25 = around 0.28</output>

<gadget id="calculator">7 / 4</gadget>
<output>7/4 = around 1.75</output>

<gadget id="calculator">(7/25) * (7/4)</gadget>
<output>49/100 = around 0.49</output>

<gadget id="calculator">(49/100) / 0.7</gadget>
<output>0.7</output>

<result>0.7</result>