What is the number 3 less than (3/5) of 50?
比50的(3/5)少3的数是多少．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">50 * (3/5)</gadget>
<output>30</output>

<gadget id="calculator">30 - 3</gadget>
<output>27</output>

<result>27</result>