You can write it as a fraction . . . . . 5/4
You can write it as a decimal . . . . . 1.25
Or you can write it as a ratio . . . . . 5 : 4
Ratios can be represented in three ways: as a fraction, as a decimal, and as a ratio using a colon. For example, the ratio 5 to 4 can be written as 4 5 , 1.25 , or 5 : 4 . Each format serves a different purpose but conveys the same relationship between the quantities.
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