If 2X-15=31, then ((1/2)-(1/3))X=how much.
如果2X-15=31，那么((1/2)-(1/3))X=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">(1/2) - (1/3)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">31 + 15</gadget>
<output>46</output>

<gadget id="calculator">46 / 2</gadget>
<output>23</output>

<gadget id="calculator">(1/6) * 23</gadget>
<output>23/6 = around 3.833333</output>

<result>23/6 = around 3.833333</result>