
A ratio of 28 to 80 can be written as 28 to 80, 28:80, or 28/80. Furthermore, 28 and 80 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on.
A ratio of 28 to 80 simply means that for every 28 of something, there are 80 of something else, with a total of 108.
In the box below, you can enter a number in either box and we will calculate the other number to keep the ratio of 28 to 80. In other words, we will calculate the corresponding equivalent ratio of 28:80 for you.
To calculate the left side of the ratio, our calculator multiplies the right side by 28 and then divides the product by 80. To calculate the right side of the ratio, our calculator multiplies the left side by 80 and then divides the product by 28. Answers are rounded to two decimals if necessary.
Below is a list of equivalent ratios of 28:80 that we created using our 28:80 ratio calculator above.
7:20
14:40
21:60
28:80
35:100
42:120
49:140
56:160
63:180
70:200
77:220
84:240
We have also created a pie chart for you to put 28:80 ratio in perspective. To do so, we divided a pie into 108 pieces and then colored 28 pieces green and 80 pieces blue. The pie will look exactly the same using any equivalent ratio of 28:80.

The green part of the pie covers 25.93% and the blue part covers 74.07%. To calculate the percentages, we divided each side of the ratio by its total and then multiplied by 100, like this:
(28 / 108)×100 ≈ 25.93
(80 / 108)×100 ≈ 74.07
In fractional terms, 28/80 of the pie above is colored in green. This means that the ratio of 28 to 80 or 28:80 can also be expressed as a fraction, where the 28 to the left of the colon is the numerator and the 80 to the right of the colon is the denominator:
28:80 = 28/80
Ratio is often used when defining rectangles in width:height format. Width and height can be feet, inches, centimeters, or any other kind of length. With a ratio of 28 to 80, the width is 28 and the height is 80. Below is a picture of what a rectangle with a ratio of 28:80 looks like.

Since the simplest form of the fraction 28/80 is 7/20, the simplest form of the ratio 28:80 is also 7:20.
Ratio Calculator
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Ratio of 28 to 81
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