When Xiaofang spent (1/5) on math homework and less (1/4) on Chinese homework, how much time did Xiaofang spend on these two homework?
小芳做数学作业用了(1/5)时，比做语文作业少用(1/4)时，小芳做这两门作业共用了多少时间？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/5) + (1/4) + (1/5)</gadget>
<output>13/20 = around 0.65</output>

<result>13/20 = around 0.65</result>