How much is 15 (4/5) equal to 18
15的(4/5)相当于18的多少
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 18</gadget>
<output>2/45 = around 0.044444</output>

<gadget id="calculator">15 * (2/45)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>