Sunshine Primary School plans to plant 200 saplings, 40% of which are planted in the sixth grade, and the rest are allocated to the fourth and fifth grades at a ratio of 3:5. How many saplings will the fourth grade get?
阳光小学准备种植200棵树苗，六年级种植了40%，余下的按3：5分配给四、五两个年级种植，四年级分到多少棵？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">200 * (3/5)</gadget>
<output>120</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">120 / 8</gadget>
<output>15</output>

<gadget id="calculator">15 * 3</gadget>
<output>45</output>

<result>45</result>