Ellen made smoothies in the blender . She used 0.2 cup of strawberries , 0.1 cup of yogurt , and 0.2 cup of orange juice . How many cups of ingredients did Ellen use for the smoothies ?
<gadget id="calculator">0.2 + 0.1 + 0.2</gadget>
<output>0.5</output>

<result>0.5</result>