Xiaohong has collected 42 stamps, and the number of stamps collected by Xiaoming is Xiaohong's (5/7). How many stamps did they collect in total?
小红收集到了42张邮票，小明收集的邮票张数是小红的(5/7)．他们一共收集了多少张邮票？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 + (5/7)</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">42 * (12/7)</gadget>
<output>72</output>

<result>72</result>