16 meters first increased by (1/4), and then increased by (1/4), what is the result in meters?
16米先增加(1/4)，再增加(1/4)，结果是多少米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">16 * (1/4)</gadget>
<output>4</output>

<gadget id="calculator">16 + 4</gadget>
<output>20</output>

<gadget id="calculator">20 * (1/4)</gadget>
<output>5</output>

<gadget id="calculator">16 + 4 + 5</gadget>
<output>25</output>

<result>25</result>