30% of number A is equivalent to 60% of number B, how much more number A is than number B
甲数的30%相当于乙数的60%，甲数比乙数多多少
<gadget id="calculator">10 / 3</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(10/3) - (5/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(5/3) / (5/3)</gadget>
<output>1</output>

<result>1</result>