4 3 5 8 x 1 12 July 8, 2019 16 32 64 128 4 3 5 phần 8 chia x 1 12 X 1 2 3 4 5 y 4 8 12 16 5 8 x 12 11 3 4 x 1 11 4 x 3 )- 5 3x 8 )= 12 2 3x 1 8 ÷ 5/8 1/4 + 3/8
