Column solution: A number is 4 less than (1/4) of 120, find this number.
列式解答：一个数比120的(1/4)少4，求这个数．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<gadget id="calculator">30 - 4</gadget>
<output>26</output>

<result>26</result>