If the number of boys in Class 1, Grade 6 is 2/3 of the number of girls, then the number of girls is equal to the number of boys
六年级1班男生人数是女生人数的(2/3)，那么女生人数是男生人数的多少
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / (2/3)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>