The age ratio of Xiaohua and grandpa is 1:6. It is known that grandpa is 50 years older than Xiaohua. What is the sum of the ages of Xiaohua and grandpa?
小华和爷爷的年龄比是1：6，已知爷爷比小华大50岁，小华和爷爷的年龄和是多少岁？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">50 / 5</gadget>
<output>10</output>

<gadget id="calculator">1 + 6</gadget>
<output>7</output>

<gadget id="calculator">10 * 7</gadget>
<output>70</output>

<result>70</result>