4 7 2 3 1 5 July 8, 2019 16 32 64 128 4 7 x 2 3 =- 1 5 7 2 3 х )= 4 х 1 )+ 5 1 4 7 times 2 3 5 4 7 5x 2 )= 1 5x 3 4 1 2x 3 7 )- 2 8 5 2x 4 1 2b 3 7 )- 2 8 5 2b 4 7 3z )+ 1 5 3 5z 2 4 7 x 5 6 1 2 3 1 2 3 4 5 7 number series 4 7 nhân x 2 3 1 5 3 4 7 2 1 5 fraction 4 7 2n 1 )= 2 3 5n 3 4 7 x 2 1 5 as a mixed number 3 4 7 − 2 1 5 ≈