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Money off coupons have been circulated to 300 households. Only 2/5 of these were redeemed(used) in the local supermarket to get a free shampoo. What fraction of coupons were unused?
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Money off coupons have been circulated to 300 households. Only 2/5 of these were redeemed(used) in the local supermarket to get a free shampoo. What fraction of coupons were unused?

User Patrick Huizinga
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3/5, because if you added the 2/5 to the 3/5 it would be 5/5 or all the coupons totaled. So if 2/5 were used, 3/5 were unused
User David Randall
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