Question

-0,78*(-0,21)-0,22*(-0,21/4,8*1/3:(-0,016)=? Решите пожалуйста!срочно

Answer 1

$\frac{ - 0.78 \times ( - 0.21) - 0.22 \times ( - 0.21)}{4.8 \times \frac{1}{3} \div ( - 0.016)} = \\ \frac{( - 0.21)( - 0.78 - 0.22)}{1.6 \div ( - 0.016)} = \\ \frac{( - 0.21) \times ( - 1)}{ - 100} = \\ \frac{0.21}{ - 100} = - 0.0021$