Question

-2/7-3/4×(-28) как???

Answer 1

-2/7-3/4*(-28)= -2/7+ 3*28/4= -2/7+3*4=
-2/7+ 84/7= 82/7= 11 5/7

Answer 2

-2/7-3/4×(-28)=-2/7+21=-2/7+20 7/7=20 5/7

Answer 3

To solve this expression, you need to follow the order of operations (PEMDAS): parentheses, exponents, multiplication/division (from left to right), and addition/subtraction (from left to right).

Using this rule, we can simplify the expression step-by-step:

First, we can simplify the expression inside the parentheses:

-3/4 x (-28) = 21

Next, we can substitute the simplified expression back into the original expression:

-2/7 - 21 = -2/7 - 147/7

Now we can combine the two fractions with a common denominator:

-2/7 - 147/7 = -149/7

Therefore, the final answer is -149/7.