Fiddle with and Work out

Fiddle with verb - To handle thoughtlessly, ignorantly, or mischievously.

Work out and fiddle with are semantically related. In some cases you can use "Work out" instead a verb "Fiddle with".

Work out verb - To find an answer for through reasoning.

Fiddle with and work out are semantically related. Sometimes you can use "Fiddle with" instead a verb "Work out".