What is five over two, or five-halves, written as a decimal? Circle your answer. Is it 2.05, 2.1, 2.5, or 5.2?
The line between the numerator and denominator in any fraction means divide. Therefore, five over two is the same as five divided by two. We could divide five by two using the bus stop method. Two goes into five two times with a remainder of one. We need to put a decimal point into the question and then carry the one. 10 divided by two is equal to five. Therefore, five divided by two is 2.5. This means that five over two, or five-halves, written as a decimal is 2.5. We need to circle this answer.
An alternative method would be to turn the fraction five-halves into a mixed number, or mixed fraction. The diagram showed that we have shaded in five-halves in pink. This is the same as two whole ones and one-half of the third shape. Therefore, five-halves is the same as two and a half. We know that the fraction one-half is the same as 0.5. Therefore, two and a half is equal to 2.5. Once again, we have proved that the correct answer is 2.5.