Question

3)-3/7*(-2/3)*2 1/3*(-2 1/4)​

Answer 1

Пошаговое объяснение:

-3/7(-2/3)×2 1/3×(-2 1/4)=

=2/7×7/3×(-9/4)= - 2/3×9/4= - 3/2=

= - 1 1/2= - 1,5

Answer 2

Ответ:

-1 1/2

Пошаговое объяснение:

-3/7*(-2/3)*2 1/3*(-2 1/4)=2/7*7/3*(-9/4)= 2/3*(-9/4)= -3/2= -1 1/2

второй вариант по шагово

1) -3/7*(-2/3)= 2/7 (сокращаем 3 остается 2/7 минус на минус дает плюс)

2) 2/7*2 1/3= 2/7* 7/3= 2/3 ( из дроби 2 1/3 делаем неправильную 7/3, сокращаем 7 остается 2/3)

3) 2/3 * (-2 1/4)=2/3*(- 9/4)= -3/2 = - 1 1/2

Answer 3

To simplify the given expression, let's break it down step by step:

1. Start with the multiplication and division from left to right:

-3/7 * (-2/3) * 2 1/3 * (-2 1/4)

2. Calculate the first multiplication:

= (-3/7) * (-2/3) * 2 1/3 * (-2 1/4)

3. Multiply the fractions:

= (6/21) * 2 1/3 * (-2 1/4)

4. Simplify the fractions in the expression:

6/21 can be simplified to 2/7:

= (2/7) * 2 1/3 * (-2 1/4)

5. Now, let's calculate the mixed numbers (2 1/3 and -2 1/4) as improper fractions:

2 1/3 can be written as (7/3) and -2 1/4 can be written as (-9/4):

= (2/7) * (7/3) * (-9/4)

6. Now, perform the multiplications:

= (2/7) * (7/3) * (-9/4)

7. Cancel out common factors between numerators and denominators:

= (1/1) * (1/1) * (-3/4)

8. Multiply the remaining fractions:

= (1 * 1 * -3) / (1 * 1 * 4)

9. Finally, simplify the result:

= -3/4

So, the simplified value of the given expression is -3/4.