What is the way from paris to fougeres and grasse?

For Fougeres, train to Rennes then a bus.

For Grasse, TGV to Cannes then a regular train to Grasse. This is a considerably longer trip.

In case you are not aware, Fougeres (or at least the Fougeres I am aware of) and Grasse are in opposite directions.

Thank you very much!

Fly to Nice. Take a bus to Grasse. Train is a really long ride and expensive. Flying is cheaper and faster.
Easyjet from Paris to Nice is 90.00 next May. You did not post dates. Fares are very date specific.

The train to Nice is definitely longer than flying, about 5-1/2 hours, but for me it's so much more relaxing than flying that it's worth the extra time. No getting to the airport ahead of time, no long security lines, no getting from airport to my final destination, no worries about carry-on size. And, as for cost, that depends on when you're going. If purchased ahead of time the TGV can be as little as €39. That's what I paid buying the ticket about 2 months ahead, but that price will last until a certain amount of tickets are sold, then the next price would be €49, and so on.