Xiao Wang wants to complete a 90-page book entry task. He recorded (1/5) of it on the first day and the rest (1/3) on the second day. How many pages are left to be entered?
小王要完成一项90页书的录入任务，第一天录了它的(1/5)，第二天录了剩下的(1/3)，还剩多少页没有录入？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(4/5) * (1/3)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">1 - (1/5) - (4/15)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">90 * (8/15)</gadget>
<output>48</output>

<result>48</result>