Preheat oven to 375 degrees F. Butter a 9-inch baking dish.
Slice the pears. Wash and dry the cranberries
In a large bowl combine the sliced pears, cranberries, sugar, flour, cinnamon, and orange juice. Toss together until well combined. Pour the combined ingredients into the prepared baking dish and set aside.
For the topping combine the sugar, flour and oats, mix until well combined. Add the softened butter and by fork or by hand mix until well combined. Sprinkle the topping over the fruit mixture. Place in the preheat oven for 35 to 40 minutes or until mixture is bubbling and the topping is golden brown.
Serve while warm with or without vanilla ice cream