Question

6/11X 3/7 + 3/7 X 5/11

Answer 1

X là nhân à?

Answer 2

6/11X 3/7 + 3/7 X 5/11

=\(\dfrac{6x3}{11x7}+\dfrac{3x5}{7x11}=\dfrac{18}{77}+\dfrac{15}{77}=\dfrac{33}{77}\)

Kết quả là 33/77 em nhé! :)

Answer 3

\(\dfrac{6}{11}\) . \(\dfrac{3}{7}\) + \(\dfrac{3}{7}\) . \(\dfrac{5}{11}\)

= ( \(\dfrac{6}{11}\) + \(\dfrac{5}{11}\) ) \(\dfrac{3}{7}\)

= 1 . \(\dfrac{3}{7}\) = \(\dfrac{3}{7}\)

Answer 4

\(\dfrac{6}{11}x\dfrac{3}{7}+\dfrac{3}{7}x\dfrac{5}{11}\)

= \(\dfrac{3}{7}x\left(\dfrac{6}{11}+\dfrac{5}{11}\right)\)

= \(\dfrac{3}{7}x1\)

= \(\dfrac{3}{7}\)

* \(x\) là dấu nhân nhé

Answer 5

Ta có: \(\dfrac{6}{11}\cdot\dfrac{3}{7}+\dfrac{3}{7}\cdot\dfrac{5}{11}\)

\(=\dfrac{3}{7}\cdot\left(\dfrac{6}{11}+\dfrac{5}{11}\right)\)

\(=\dfrac{3}{7}\cdot1=\dfrac{3}{7}\)