Heat oven to 375F. Lightly grease a 13x9 glass pan. Cut fruit into slices (removing pit or seeds) and layer in bottom of pan. Mix dry ingredients in a medium sized bowl and then cut in butter with a pastry cutter (cut until crumbly). Sprinkle mixture over fruit. Bake for 30-35 minutes. Top should be browned. Serve with ice cream or whipped cream.