1 5 x 21 July 8, 2019 16 32 64 128 1 5 x 210 1 5 x 21 )=- 6 1 7 5 21 x 7 3 1 2 x 5 x 21 X 5 )( x 1 )- 21 0 X 1 5 3 21 1 x 5 1 x 13 2 21 1 5 8 x 21 galvanized pipe 1 5 7 x 21 1 5 9 x 21 3 5 1 x )= 21 20 5 1 8 x 21 glulam beam 1 2 3 4 5 x 210 1 2 3 5 x 13 21 1 3 x 21 5 as a fraction
