It is known that (4/5) of a number is (8/13), find this number. What is the correct column
已知一个数的(4/5)是(8/13)，求这个数．正确列式是多少
<gadget id="calculator">8 / 13</gadget>
<output>8/13 = around 0.615385</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(8/13) / (4/5)</gadget>
<output>10/13 = around 0.769231</output>

<result>10/13 = around 0.769231</result>