The rectangle was 21 inches long and 6 wide. What was the ratio of its length
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Did you mean, "What was the ratio of its length to its width?
length : width
= 21 : 6
= 7 : 2
To find the ratio of the length of the rectangle, we need to divide the length by the width.
The formula to calculate a ratio is:
ratio = length / width
Given that the length of the rectangle is 21 inches and the width is 6 inches, we can substitute these values into the formula:
ratio = 21 / 6
Now, we can simplify the ratio by dividing the numerator and the denominator by their greatest common divisor:
ratio = (21 ÷ 3) / (6 ÷ 3)
= 7 / 2
So, the ratio of the length of the rectangle is 7:2.