someone has 215 coins 89 are nickles 2/3 of the remaining are pennys

I'm going to fill in the blank, here. I'm assuming you want to know how many pennies you have.

The remaining coins =  215 - 89  = 126

And 2/3 of 126 = 84 pennies.

If this isn't what you wanted.....accept my apologies......

That's not a question.