3 5 x 20 9 July 8, 2019 16 32 64 128 4 3 x+ 5 2 )= − 20 9 3 x 5 )- 7 2x 1 )=- 9x 20 2 5 3 5 x 9 20 3 x 5 )+ 37 9x 20 5 1 3 x 9 20 5 9 x )= 20 3 6x 4 5 4 3 x 9 20 5 9 x 3 20 as a fraction 5 1 3 4 3 x 9 20 3 5 x 20 18 chia 2 9 1 15