Question

9/5: 17/5 +8/5:17/15 b 100/ + 28,4/-36,7/

Answer 1

a) Ta có: \(\dfrac{9}{5}:\dfrac{17}{5}+\dfrac{8}{5}:\dfrac{17}{15}\)

\(=\dfrac{9}{5}\cdot\dfrac{5}{17}+\dfrac{8}{5}\cdot\dfrac{15}{17}\)

\(=\dfrac{9}{17}+\dfrac{24}{17}=\dfrac{33}{17}\)

Answer 2

 a )9/5: 17/5 + 8/5 : 17/15 = 9/5 x 5/17 + 8/5 x 15/17 = 9/17  +24/17=  33/17

b) ?

Answer 3

a, `9/5 : 17/5 + 8/5 : 17/5`

`=(9/5+8/5) : 17/5`

`=17/5 : 17/5`

`=1`