A book has 240 pages. The ratio of the number of pages Xiaoming has read to the number of pages he has not read is 5:3. How many pages have he read?
一本书有240页，小明已看的页数和未看页数的比是5：3，已看多少页？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">240 * (5/8)</gadget>
<output>150</output>

<result>150</result>