Joanna has $8. Compared to her money, her brother has thrice as much while her sister has only half as much. How much money do the three of them have altogether?
Joanna has $
<gadget id="calculator">8</gadget>
<output>8</output>
8.
Joanna's brother has thrice as much as Joanna, so he has $8 * 3 = $
<gadget id="calculator">8*3</gadget>
<output>24</output>
24.
Her sister has half as much as Joanna, then she has $8/2 = $
<gadget id="calculator">8/2</gadget>
<output>4</output>
4.
Together they have $8 + $24 + $4 = $
<gadget id="calculator">8+24+4</gadget>
<output>36</output>
36 altogether.

<result>36</result>