Jackie made an error when trying to determine the value of the expression.

Here are the steps she used.
2/3(3/5-3/4)+1/2divide 1/4
Describe the error that Jackie made.

Enter your description of the error in the space provided.

An architect builds a model of a park in the shape of a rectangle. the model is 40.64 centimeters long and 66.04 centimeters wide. one inch equals 2.54 centimeters. use the ratio table to find the ratio of the length to the sum of the length and width in inches and in simplest form. length 40.64 width 66.04 a. 8: 21 b. 13: 21 c. 21: 13 d. 21: 8