"The number of people in class 1 is the number of people in class 2 (6/7)" is to regard (number of people in class 2) as the unit "1", and (number of people in class 1) accounts for (number of people in class 2) (6/7 ). If there are 42 people in Class 2, how many people are there in the two classes?
"六1班人数是六2班人数的(6/7)"是把(六2班人数)看作单位"1"，(六1班人数)占(六2班人数)的(6/7)．如果六2班有42人，那两个班一共有多少人．
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">42 * (6/7)</gadget>
<output>36</output>

<gadget id="calculator">36 + 42</gadget>
<output>78</output>

<result>78</result>