The original price of a schoolbag is 70 yuan, and it is sold at a 40% discount. What is the current price?
一个书包原价70元，打六折出售，现价是多少元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">70 * (3/5)</gadget>
<output>42</output>

<result>42</result>