Question

1- 1/2 - 1/4 - 1/8 - 1/16 

Tính bằng cách thuật tiện nhất

Answer 1

\(\text{Ta có: }1-\frac{1}{2}-\frac{1}{4}-\frac{1}{8}-\frac{1}{16}\)

\(=1-\left(1-\frac{1}{2}\right)-\left(\frac{1}{2}-\frac{1}{4}\right)-\left(\frac{1}{4}-\frac{1}{8}\right)-\left(\frac{1}{8}-\frac{1}{16}\right)\)

\(=\left(1-1\right)+\left(\frac{1}{2}-\frac{1}{2}\right)+\left(\frac{1}{4}-\frac{1}{4}\right)+\left(\frac{1}{8}-\frac{1}{8}\right)+\frac{1}{16}\)

\(=\frac{1}{16}\)

Answer 2

1-1/2-1/4-1/8-1/16

=1- 15/16

=16/16-15/16

=16-15/16

=1/16

Answer 3

1-1/2-1/4-1/8-1/16 =1-8/16-4/16-2/16-1/16=1/16

Answer 4

 cac phan so 1/2 ,1/4 ,1/8de bang mau so cua phan so 1/16 duoc lan luot la; 8/16,4/16va 2/16

1-(8/16-4/16-2/16)=1-2/16=8/16

=1/2 

chuc ban hoc gioi

Answer 5

 1/ 16 nha

Answer 6

     1-1/2-1/4-1/8-1/16

= 1- 8-4-2-1/16

= 1-1/16

= 15/16