Star Primary School plans to donate 500 books to children in poor areas. The sixth grade donated a total of 150 books, 5 more than the fifth grade (5/7). How many books were donated in the fifth grade?
明星小学计划为贫困地区的小朋友捐书500本．六年级一共捐了150本，比五年级的(5/7)还多5本，五年级一共捐了多少本书？
<gadget id="calculator">150 - 5</gadget>
<output>145</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">145 / (5/7)</gadget>
<output>203</output>

<result>203</result>