Mom went to a shopping mall to buy a new set of clothes. She spent 80 yuan on a pair of trousers, which were a top (4/7). How much does it cost to buy this suit?
妈妈去一家商场买一套新衣服，买一条裤子花了80元，是一件上衣的(4/7)．买这套衣服共需多少元？
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">80 / (4/7)</gadget>
<output>140</output>

<gadget id="calculator">80 + 140</gadget>
<output>220</output>

<result>220</result>