80% of a number is 5 less than (3/5) of 45. What is this number?
一个数的80%比45的(3/5)少5，这个数是多少？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">45 * (3/5)</gadget>
<output>27</output>

<gadget id="calculator">27 - 5</gadget>
<output>22</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">22 / (4/5)</gadget>
<output>55/2 = around 27.5</output>

<result>55/2 = around 27.5</result>