The fourth grade students folded 171 red flowers as props, which is three times the number of third grade students. How many red flowers did the third and fourth graders fold?
四年级同学折了171朵红花做道具，是三年级同学折的朵数的3倍，三、四年级共折了多少朵红花？
<gadget id="calculator">171 / 3</gadget>
<output>57</output>

<gadget id="calculator">57 + 171</gadget>
<output>228</output>

<result>228</result>