Mom bought tomatoes for 3 yuan and 4 cents, and cucumbers for 5 yuan and 7 cents. How much did she spend in total?
妈妈买了3元4角的西红柿，又买了5元7角的黄瓜，她一共花了多少元．
<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) + 3</gadget>
<output>17/5 = around 3.4</output>

<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(7/10) + 5</gadget>
<output>57/10 = around 5.7</output>

<gadget id="calculator">(17/5) + (57/10)</gadget>
<output>91/10 = around 9.1</output>

<result>91/10 = around 9.1</result>