field date expression

DateFormat(query.fromDay, "m/d") + "  "  + DateFormat(query.toDay, "m/d")

I wanted to show my report field like ' from 10/20/2014 to 10/25/2014 and have above code in the expression.

I got error when run the report.

It works for one expression like DateFormat(query.fromDay, "m/d"), but it does not work to combine 2 of them together.

Your help and information is great appreciated,

Regards,

Iccsi,