Question
Luis bought 5 packets of marbles. In each packet, there were 14 marbles. He used 7 of the marbles and gave some of them to his cousin. 15 of his marbles were then left. What fraction of the marbles he bought were given to his cousin?
4 m

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Luis bought 5 packets of marbles. In each packet, there were 14 marbles. He used 7 of the marbles and gave some of them to his cousin. 15 of his marbles were then left. What fraction of the marbles he bought were given to his cousin?