Question

405 : 27 x 516
\(\dfrac{6}{7}\) + \(\dfrac{2}{3}\) x \(\dfrac{5}{4}\)
\(\dfrac{9}{5}\) - \(\dfrac{6}{7}\) : \(\dfrac{11}{7}\)

Answer 1

\(405:27\times516=15\times516=7740\)

\(\dfrac{6}{7}+\dfrac{2}{3}\times\dfrac{5}{4}=\dfrac{6}{7}+\dfrac{5}{6}=\dfrac{71}{42}\)

\(\dfrac{9}{5}-\dfrac{6}{7}:\dfrac{11}{7}=\dfrac{9}{5}-\dfrac{6}{11}=\dfrac{69}{55}\)

Answer 2

mt đou bn

Answer 3

7740

71/42

69/55

Answer 4

405 : 27 x 516 = 7740

\(\dfrac{6}{7}+\dfrac{5}{6}=\dfrac{36}{42}+\dfrac{35}{42}=\dfrac{71}{42}\)

\(\dfrac{9}{5}-\dfrac{6}{7}x\dfrac{11}{7}=\dfrac{9}{5}-\dfrac{6}{11}=\dfrac{99}{55}-\dfrac{30}{55}=\dfrac{69}{55}\)

Answer 5

405 : 27 x 516 = 15 x 516 = 7740

6/7 + 2/3 x 5/4 = 6/7 + 5/6 = 36/42 + 35/42 = 71/42

9/5 - 6/7 : 11/7 = 9/5 - 6/7 x 7/11 = 9/5 - 6/11 = 99/55 - 30/55 = 69/55.

Answer 6

405 : 27 x 516

=15x 516

=7740

 

\(\dfrac{6}{7}+\dfrac{2}{3}x\dfrac{5}{4}\)

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

\(=\dfrac{71}{42}\)

 

\(\dfrac{9}{5}-\dfrac{6}{7}:\dfrac{11}{7}\)

\(=\dfrac{9}{5}-\dfrac{6}{7}x\dfrac{7}{11}\)

\(=\dfrac{9}{5}-\dfrac{6}{11}\)

\(=\dfrac{69}{55}\)