Question

(2 1/3-3 1/4)*(2 3/4-0,95)

Answer 1

Впервой скобке приведём дроби к общему знаменателю -12, для этого числитель первой скобки домножим на 4, а второй - на 3:

((21*4)-(31*3))/12=84-93= - 9

Во второй скобке обыкновенную дробь сделаем десятичной и выполним вычитание:

((23*25)/100)-0,95=5,75-0,95=4,8

Умножим:

4,8*9=43,2

Ответ:43,2

Answer 2

To solve the expression (2 1/3 - 3 1/4) * (2 3/4 - 0.95), follow these steps:

Step 1: Convert the mixed numbers to improper fractions. Step 2: Perform the operations inside the parentheses. Step 3: Perform the multiplication.

Let's start by converting the mixed numbers to improper fractions:

2 1/3 = (2 * 3 + 1)/3 = 7/3 3 1/4 = (3 * 4 + 1)/4 = 13/4 2 3/4 = (2 * 4 + 3)/4 = 11/4

Now we have:

(7/3 - 13/4) * (11/4 - 0.95)

Step 2: Perform the operations inside the parentheses:

7/3 - 13/4 = (28/12 - 39/12) = -11/12 11/4 - 0.95 = (11/4 - 95/100) = (275/100 - 95/100) = 180/100 = 9/5

Now the expression becomes:

(-11/12) * (9/5)

Step 3: Perform the multiplication:

(-11/12) * (9/5) = (-(11 * 9)) / (12 * 5) = -99/60

Finally, we can simplify the result:

-99/60 = -33/20

So, (2 1/3 - 3 1/4) * (2 3/4 - 0.95) equals -33/20 or -1.65 in decimal form.