Dad is 45 years old this year. Xiaoqian's age is father's (1/5), and it happens to be grandpa's age (1/8). How old is grandpa this year?
爸爸今年45岁．小倩的年龄是爸爸的(1/5)，又正好是爷爷年龄的(1/8)，爷爷今年多少岁？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/5) / (1/8)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">45 * (8/5)</gadget>
<output>72</output>

<result>72</result>