8.5 is itself a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. There are many operations which will give 8.5 as an answer. For example, 7.5 + 1, or 9.5 - 1 or 1+1+1+1+1+1+1+1+0.5Its equivalent, in rational form, is 17/2.
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