It is known that the number of students in school A is 40% of the number of students in school B. If the number of girls in school A is 60% of the number of boys in school A, and the number of boys in school B is 40% of the number of students in school B, then how much are the number of girls in the two schools in the total number of students in the two schools?
已知甲校学生数是乙校学生数的40%．甲校女生数是甲校男生数的60%；乙校男生数是乙校学生的40%，那么两校女生数占两校学生总数的多少．
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/5) * 1</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(2/5) / (8/5)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(2/5) - (1/4)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">(3/5) + (3/20)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">(3/4) / (7/5)</gadget>
<output>15/28 = around 0.535714</output>

<result>15/28 = around 0.535714</result>