Question

4/9•(1,8-1 1/2a)-2 1/3•(1,2-2/7a)

Answer 1

Ответ:

-2/9*(9+8a) возможно так

Answer 2

To simplify the expression, let's follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

Given the expression:

$\frac{4}{9} \cdot \left(1.8 - \frac{3}{2}a\right) - \frac{7}{3} \cdot \left(1.2 - \frac{2}{7}a\right)$

Let's break it down step by step:

1. Inside the first set of parentheses:

$1.8 - \frac{3}{2}a$

2. Inside the second set of parentheses:

$1.2 - \frac{2}{7}a$

3. Now, multiply each term:

$\frac{4}{9} \cdot \left(1.8 - \frac{3}{2}a\right) - \frac{7}{3} \cdot \left(1.2 - \frac{2}{7}a\right)$

$\frac{4}{9} \cdot 1.8 - \frac{4}{9} \cdot \frac{3}{2}a - \frac{7}{3} \cdot 1.2 + \frac{7}{3} \cdot \frac{2}{7}a$

$\frac{32}{15} - \frac{2}{3}a - \frac{14}{5} + \frac{2}{3}a$

4. Combine like terms:

$\frac{32}{15} - \frac{14}{5}$

5. Find a common denominator:

$\frac{16}{15} - \frac{42}{15}$

$-\frac{26}{15}$

So, the simplified expression is:

$-\frac{26}{15}$