sammie bought a 10 2/5 -foot long board to make birdhouses. if each birdhouse uses 1 3/10 feet, how many birdhouses can she make?
To find out how many birdhouses Sammie can make, divide the length of the board by the length needed for each birdhouse: 10 2/5 feet / 1 3/10 feet = 10.4 / 1.3 = <<10.4/1.3=8>>8
Sammie can make 8 birdhouses. Answer: \boxed{8}.