A book has 120 pages. The ratio of the number of pages read to the number of pages not read is 3:2. How many pages has Xiaohong read?
一本书120页，已看的页数和未看的页数的比是3：2，小红已经看了多少页？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 * (3/5)</gadget>
<output>72</output>

<result>72</result>