6 32 x 9 16 July 8, 2019 16 32 64 128 32 x 80 exterior door 6 9 16 jamb 16 9 x 6 32 9 7 5 16 9 x 6 32 9 đóng ngoặc 7 5 6 - 32/9 (6 x 32) ÷ 9 = 6-32 x 6
