Dad and mom made 120 dumplings when they were two (5/6). Mom made an average of 70 dumplings per hour. How many dumplings did dad make per hour on average?
爸爸和妈妈两人(5/6)时包了120个饺子，妈妈平均每时包70个，爸爸平均每时包多少个？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">120 / (5/6)</gadget>
<output>144</output>

<gadget id="calculator">144 - 70</gadget>
<output>74</output>

<result>74</result>