Question

Joseph is baking a cake and measures out 3 cups of sugar. When he re-reads the recipe, he realizes he only needs 2 cups. The fraction 2/3 represents the ratio of sugar he needs to sugar he measured. After how many digits does the decimal form of 2/3 repeat?

Answer 1

the decimal form of 2/3 repeats forever. when you put it in a calculator it comes out as 0.666666667. the 7 is at the end because it had to be rounded to fit the number.