(1/3) of number A is (3/7) of number B, and 60% of number A is ((())/(())) of number B.
甲数的(1/3)是乙数的(3/7)，甲数的60%是乙数的((())/(()))．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">9 / 5</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">(3/7) * (9/5)</gadget>
<output>27/35 = around 0.771429</output>

<result>27/35 = around 0.771429</result>