John buys a cassette with 2 songs.  The first song is 5 minutes and the second song is 60% longer.  How much time was the total cassette?
The second song is 5*.6=
<gadget id="calculator">5*.6</gadget>
<output>3</output>
3 minutes longer than the first.
So the second song was 5+3=
<gadget id="calculator">5+3</gadget>
<output>8</output>
8 minutes.
That means the total time was 5+8=
<gadget id="calculator">5+8</gadget>
<output>13</output>
13 minutes.

<result>13</result>