Question

Please help me to simplify it .... if is of class 9th​

Answer 1

Answer:

Here is your solution.. Thanks

Answer 2

Answer:

$\dfrac{ - 2 \sqrt{5} }{3}$

Step-by-step explanation:

=> $\dfrac{2 \sqrt{30} }{ \sqrt{6} } - \dfrac{3 \sqrt{140} }{ \sqrt{28} } + \dfrac{ \sqrt{55} }{ \sqrt{99} }$

=> $\dfrac{2 \sqrt{6} \times \sqrt{5} }{ \sqrt{6} } - \dfrac{3 \times 2 \sqrt{35} }{2 \sqrt{7} } + \dfrac{ \sqrt{11} \times \sqrt{5} }{3 \sqrt{11} }$

=> $2 \sqrt{5} - \dfrac{3 \sqrt{7 } \times \sqrt{5} }{ \sqrt{7} } + \dfrac{ \sqrt{5} }{3}$

=> $2 \sqrt{5} - 3 \sqrt{5} + \dfrac{ \sqrt{5} }{3}$

=> $\dfrac{ \sqrt{5} }{3} - \sqrt{5}$

$\dfrac{ \sqrt{5} - 3 \sqrt{5} }{3}$

=> $\dfrac{ - 2 \sqrt{5} }{3}$