Joan has 180 socks. Two thirds of the socks are white, and the rest of the socks are blue. How many blue socks does Joan have?
Joan has (180/3)*2 = 
<gadget id="calculator">(180/3)*2</gadget>
<output>120</output>
120 white socks.
The number of blue socks Joan has is 180-120 = 
<gadget id="calculator">180-120</gadget>
<output>60</output>
60.

<result>60</result>