One number 36 is 4 less than the other number (4/9), what is the other number
一个数36，比另一个数的(4/9)少4，另一个数是多少
<gadget id="calculator">36 + 4</gadget>
<output>40</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">40 / (4/9)</gadget>
<output>90</output>

<result>90</result>