There are 42 students who "reach the standard" in physical education in class one of the fifth grade, accounting for (6/7) of the whole class. How many people are there in the class?
五年级一班体育"达标"的有42人，占全班人数的(6/7)，全班有多少人？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">42 / (6/7)</gadget>
<output>49</output>

<result>49</result>