Question

simplify (4/5+6/7)÷(-1/5)​

Answer 1

Step-by-step explanation:

$\tt\implies \left( \dfrac{ 4 }{ 5 } + \dfrac{ 6 }{ 7 } \right ) \div \left (- \dfrac{ 1 }{ 5 } \right)$

$\tt \implies \dfrac{\dfrac{28}{35}+\dfrac{30}{35}}{-\dfrac{1}{5}}$

$\tt \implies \dfrac{\dfrac{28+30}{35}}{-\dfrac{1}{5}}$

$\tt \implies\dfrac{\dfrac{58}{35}}{-\dfrac{1}{5}}$

$\tt \implies\dfrac{58}{35}\left(-5\right)$

$\tt \implies \dfrac{-290}{35}$

$\tt \implies -\dfrac{58}{7}$

$\red{ \boxed{ \tt \: factor : \frac{{(-1)} \cdot 2 \cdot 29}{7} \approx -8.285714286}}$