A job is done by A and B alone, and the time ratio between them is 5:3. If two people cooperate, 90 minutes to complete the task. How many minutes would A take longer than B to do the job alone?
一件工作，甲乙两人单独完成，他们所需时间比是5：3．如果两人合作，90分钟完成任务．如果单独完成这件工作，甲比乙多用多少分钟．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">(1/5) + (1/3)</gadget>
<output>8/15 = around 0.533333</output>

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

<gadget id="calculator">48 / (1/5)</gadget>
<output>240</output>

<gadget id="calculator">48 / (1/3)</gadget>
<output>144</output>

<gadget id="calculator">240 - 144</gadget>
<output>96</output>

<result>96</result>