How much is 30 kg (4/5) equivalent to 60 kg
30千克的(4/5)相当于60千克的多少
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 60</gadget>
<output>1/75 = around 0.013333</output>

<gadget id="calculator">30 * (1/75)</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>