Kade makes 5/6 cup salad dressing. he uses 2/3 cup dressing on a salad. how much salad dressing is left

To solve , we need to find a common denominator. If we multiply  by , we get . The reason we can do this is because two over two is really just equivalent to 1, and multiplying a number times one equals the original number. So if you're subtracting   from , you have

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