It takes (1/8) sheets of paper to cut a flower. The first class cuts 20 flowers, and the second class cuts 30 flowers. How many sheets of paper are shared by the two classes?
剪一朵花要用(1/8)张纸，一班剪了20朵，二班剪了30朵，两班共用了多少张纸？
<gadget id="calculator">20 + 30</gadget>
<output>50</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">50 * (1/8)</gadget>
<output>25/4 = around 6.25</output>

<result>25/4 = around 6.25</result>