If (3/4) of the number of boys is equal to (2/5) of the number of girls, what is the ratio of the number of girls to boys?
男生人数的(3/4)等于女生人数的(2/5)，女生与男生人数的比值为多少．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(2/5) / (3/4)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">1 / (8/15)</gadget>
<output>15/8 = around 1.875</output>

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