If Sandy’s cookie recipe calls for one-third cup of brown sugar and she increases it by two-ninths of a cup, how much brown sugar does she use?

(1 point)
Responses

seven-ninths cup
Image with alt text: seven-ninths cup

start fraction 5 over 9 end fraction cup
Image with alt text: start fraction 5 over 9 end fraction cup

start fraction 4 over 9 end fraction cup
Image with alt text: start fraction 4 over 9 end fraction cup

one-ninth cup

1 answer

To calculate the amount of brown sugar Sandy uses, we first need to add one-third and two-ninths.

One-third can be written as 3/9, since 1/3 is equivalent to 3/9.

So, we have:

3/9 + 2/9 = 5/9.

Therefore, Sandy uses five-ninths (5/9) cup of brown sugar.

The correct answer is: start fraction 5 over 9 end fraction cup.