Question

1- (-3.4+7)×(-1/7/18) 2-(6/2/9-5/5/6):(-7/36)

Answer 1

Ответ:

1) (-3.4+7)(-1/7/18)=3.6 * (-18/7)=18/5 * (-18/7)= -324/35

2)(6/2/9-5/5/6):(-7/36)=21:(-7/36)=-21*36/7=-3*36=-108

Answer 2

Let's break down the given expressions step by step:

1. $(-3.4 + 7) \times (-\frac{1}{7/18})$

First, calculate the addition inside the parentheses: $-3.4 + 7 = 3.6$

Now, calculate the division inside the fraction: $-\frac{1}{7/18} = -\frac{18}{7}$

Finally, multiply the two results together: $3.6 \times -\frac{18}{7} = -10.2857142857$ (approximately)

2. $\frac{6/2/9 - 5/5/6}{-7/36}$

Here, it seems like you're using a format that might be a bit confusing. I'll assume you intend to have fractions like this:

$\frac{6}{2} \div \frac{9}{5} - \frac{5}{5} \div \frac{6}{-7/36}$

Calculate each fraction separately:

$\frac{6}{2} = 3$

$\frac{9}{5} = 1.8$

$\frac{5}{5} = 1$

$\frac{6}{-7/36} = -\frac{216}{7}$

Now plug these values back into the expression and calculate:

$3 \div 1.8 - 1 \div -\frac{216}{7} = 1.6666666667$ (approximately)

Please double-check the format of your expressions if they don't match the assumptions I made above. Additionally, note that fractions can be written more clearly to avoid confusion.