The price of a set of desks and chairs is 144 yuan, and the price of the chair is the price of the desk (5/7). How much is the price of the chair?
一套课桌椅的价钱是144元，其中椅子的价钱是课桌的(5/7)，椅子的价钱是多少元？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 + (5/7)</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">144 / (12/7)</gadget>
<output>84</output>

<gadget id="calculator">144 - 84</gadget>
<output>60</output>

<result>60</result>