Write 2.5 as a mixed number and as an improper fraction. Write your answers in simplest form.
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To convert 2.5 into a mixed number, you take the whole number part (2) and the decimal part (0.5). The decimal 0.5 can be expressed as 1/2, so 2.5 as a mixed number is 2 1/2. As an improper fraction, you can convert the mixed number 2 1/2 into an improper fraction by multiplying the whole number (2) by the denominator (2), which gives you 4, and then adding the numerator (1). So, 4 + 1 = 5. Therefore, 2.5 as an improper fraction is 5/2.