The teacher assigned some oral arithmetic problems on weekends. Xiao Ming completed the total number (1/4) on Friday and Friday night, and completed (1/3) of the total number on Saturday night. At this time, he completed a total of 70 questions. How many questions did the teacher assign in total? ?
周末老师布置了一些口算题，小明星期五周五晚上完成了总数(1/4)，周六晚上又完成了总数的(1/3)，这时共完成了70道，老师一共布置了多少题？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">(1/4) + (1/3)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">70 / (7/12)</gadget>
<output>120</output>

<result>120</result>