Final answer:
To add 4.597 and 7.091, align the decimal points and add the numbers vertically. The sum is 11.688.
Step-by-step explanation:
To add 4.597 and 7.091, align the decimal points and add the numbers vertically. Start by adding the numbers in the ones place, then move to the tenths place, and so on. In this case, when adding 4.597 and 7.091, you get 11.688 as the sum.
Learn more about adding decimals