Question

b)6:x=\(1\dfrac{3}{4}\):5

Answer 1

\(6:x=1\dfrac{3}{4}:5\)

\(\Rightarrow6:x=\dfrac{7}{20}\)

\(\Rightarrow x=6:\dfrac{7}{20}\)

\(\Rightarrow x=6.\dfrac{20}{7}\)

\(\Rightarrow x=\dfrac{120}{7}\)

Vậy ...

Answer 2

b)\(6:x=1\dfrac{3}{4}:5\)

\(\Leftrightarrow\dfrac{6}{x}=\dfrac{7}{4}:5\)

\(\Leftrightarrow\dfrac{6}{x}=\dfrac{7}{20}\)

\(\Rightarrow x=\dfrac{6.20}{7}=\dfrac{120}{7}\)

Answer 3

6 : x = 7/20

x = 6 : 7/20

x = 120/7

mik rút gọn lun rùi nhé

Answer 4

\(6:x=1^3_4:5\)

\(6:x=\dfrac{7}{4}:5\)

\(6:x=\dfrac{7}{20}\)

\(x=6:\dfrac{7}{20}\)

\(x=\dfrac{120}{7}\)

Answer 5

\(6\div x=1\dfrac{3}{4}\div5\)

\(\Rightarrow\dfrac{6}{x}=\dfrac{7}{4}\div5\)

\(\dfrac{6}{x}=\dfrac{7}{20}\)

<=> 6 . 20 = 7x

<=> 120 = 7x

<=> x = \(\dfrac{120}{7}=17\dfrac{1}{7}\)

Vậy \(x=17\dfrac{1}{7}\)