Question

tinh nhanh :

    1/2+1/4+1/8+1/16+1/32=

Answer 1

\(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+\frac{1}{16}+\frac{1}{32}=\frac{16}{32}+\frac{8}{32}+\frac{4}{32}+\frac{2}{32}+\frac{1}{32}\)

=\(\frac{16+8+4+2+1}{32}=\frac{31}{32}\)