Dad works 4 days a day off, mother works 6 days a day off, today father and mother rest together, at least how many days will they rest together again?
爸爸每工作4天休息一天，妈妈每工作6天休息一天，今天爸爸、妈妈一起休息，至少再过多少天他们又一次一起休息？
<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<result>35</result>