Question

tinh nhanh :

7/8+1/8x3/8+1/8x5/8

Answer 1

\(\frac{7}{8}+\frac{1}{8}\times\frac{3}{8}+\frac{1}{8}\times\frac{5}{8}=\frac{7}{8}+\frac{1}{8}\times\left(\frac{3}{8}+\frac{5}{8}\right)=\frac{7}{8}+\frac{1}{8}\times1\)

\(=\frac{7}{8}+\frac{1}{8}=1\)

Answer 2

=1/8 x ( 7/8 +5/8)

= ...

ban tu lam not nha

Answer 3

       Bài làm :

Ta có :

\(\frac{7}{8}+\frac{1}{8}\times\frac{3}{8}+\frac{1}{8}\times\frac{5}{8}\)

\(=\frac{7}{8}+\frac{1}{8}\times\left(\frac{3}{8}+\frac{5}{8}\right)\)

\(=\frac{7}{8}+\frac{1}{8}\times\frac{8}{8}\)

\(=\frac{7}{8}+\frac{1}{8}\times1\)

\(=\frac{8}{8}=1\)