The sum of the minuend, the subtrahend and the difference is 156, the subtrahend is the difference (1/2), what is the subtrahend.
被减数、减数与差的和是156，减数是差的(1/2)，减数是多少．
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">156 * (1/6)</gadget>
<output>26</output>

<result>26</result>