To solve this problem, we need to use the properties of operations and rules for multiplying and dividing signed numbers.
First, let's multiply 2 3/4 by -2 3/4:
(11/4) * (-11/4) = (-121/16)
Next, let's simplify the fraction:
81/99 = (9 * 9) / (11 * 9) = 81/99
Finally, let's express -81/99 as a negative fraction:
-81/99 = -81/99
So, the solutions are:
2 3/4 * -2 3/4 = -121/16
81/99
-81/99
Use the properties of operations and rules for multiplying and dividing signed numbers to solve:
*
1 point
Captionless Image
2 3/4
-2 3/4
81/99
-81/99
1 answer