4 3 x 21 8 July 8, 2019 16 32 64 128 8 x 4 )+ 3 2 x )=- 21 21 8 x 4 3 7 6 3 x 4 8x 21 3 4 7 8 x 21 2 3 8 x 4 21 as a fraction 21 8 x 3 4 bằng bao nhiêu 21 3/4 x 2 21-3/4 x 17 3 x 4/21 4 × 21