Question

\(\frac{5}{16}.\frac{11}{13}-\frac{5}{4}.\frac{1}{13}+\frac{7}{16}.\frac{3}{26}\)

Hãy tìm  giá trị của biểu thức trên .

Answer 1

5/6 x 11/13 - 5/4 x 1/13  +7/16 x 3/26

=55/208 - 5/52 + 21/416

=35/208 + 21/416

=7/32

Kết quả đúng chắc chắn 100%

Answer 2

có  làm jumf tớ đi

Answer 3

tó chịu r

Answer 4

\(\frac{5}{16}\cdot\frac{11}{13}-\frac{5}{4}\cdot\frac{1}{13}+\frac{7}{16}\cdot\frac{3}{26}\)

\(=\frac{5}{16}\cdot11\cdot\frac{1}{13}-\frac{5}{4}\cdot\frac{1}{13}+\frac{7}{16}\cdot\frac{1}{13}\)

\(=\left(\frac{5}{16}\cdot11-\frac{5}{4}+\frac{7}{16}\right)\cdot\frac{1}{13}\)

\(=\left(\frac{5\cdot11}{16}-\frac{10}{16}+\frac{7}{16}\right)\cdot\frac{1}{13}\)

\(=\left(\frac{55}{16}-\frac{10}{16}+\frac{7}{16}\right)\cdot\frac{1}{13}\)

\(=\left(\frac{45}{16}+\frac{7}{16}\right)\cdot\frac{1}{13}\)

\(=\frac{52}{16}\cdot\frac{1}{13}\)

\(=\frac{52\cdot1}{16\cdot13}\)

\(=\frac{4\cdot1}{16\cdot1}\)

\(=\frac{1\cdot1}{4\cdot1}\)

\(=\frac{1}{4}\)