Draw a model to represent the problem 1/1-:- 2/12
As the given expression contains division and subtraction, it can be represented using a fraction bar and an arrow line:
1/1 -:- 2/12
On the top of the fraction bar, we have the fraction 1/1.
On the bottom of the fraction bar, we have an arrow pointing to the right to indicate that the value on the top of the arrow will be divided by the value on the bottom of the arrow.
On the right side of the arrow, we have the fraction 2/12.
The model would look like this:
1/1 ---> 2/12
To represent the problem 1/1 -:- 2/12 visually, we can create a diagram or model using rectangular boxes.
Step 1: Start by drawing a rectangle to represent the whole quantity or the number 1.
__________
| |
| 1 |
|__________|
Step 2: Divide this rectangle into 12 equal parts since the denominator of 2/12 is 12.
________ ________ ________ _______
| | | | |
| 1/12 | 1/12 | 1/12 | 1/12 |
|_______|______|_____|______|
Step 3: Color in two of the divided parts (1/12) to represent the numerator of 2/12.
________ ________ ________ _______
| | | | |
| 1/12 | 1/12 | 1/12 | 1/12 |
|_______|_____X|_____X|______|
Step 4: Now, divide the remaining rectangle into two equal parts since the denominator of 1/1 is 2.
_______________
| | |
| 1/2 | 1/2 |
|______|______|
Step 5: In the first half of the rectangle (1/2), write "1" to represent the whole quantity of 1. In the second half of the rectangle (1/2), place the divided rectangle from Step 3.
_______________
| | |
| 1 | 1/12 1/12 |
|______|_____X|_____X|
The resulting diagram represents the expression 1/1 - 2/12 visually.