One bar is (9/4) meters long and 20% longer than the other, how many meters is the other?
一根钢筋长(9/4)米，比另一根长20%，另一根长多少米？
<gadget id="calculator">9 / 4</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(9/4) / (6/5)</gadget>
<output>15/8 = around 1.875</output>

<result>15/8 = around 1.875</result>