Can u recommend an exercise that is easy to do but still burns fat? I'm a couch,potato and don't want to work too hard.

To burn fat, it is necessary to get your heart-rate up for a sustained period while consuming fewer calories than you burn. A program of healthy diet and exercise is the typical plan of action.

While we can’t determine what is “too hard”, a physician can help you determine what would be an effective course for your particular situation.

Try swimming...so easy on the joints but still an effective work out

Or  get a simple exercise rubber band.

Eat less to start with and continue with controlled eating.  Ease the carb and bakeries.

Drink food and eat water... If you understand what i mean.....