A girl bought some fruits from the market, where the ratio of the weight of grapes to that of bananas she bought is , and the ratio of the weight of bananas to that of oranges is . Find the ratio between the weights of grapes, bananas, and oranges.
Present the two ratios vertically. Use the LCM of the shared term (bananas) to make equivalent ratios.
Then write a ratio among three terms. Divide the terms by the same number to simplify.