Mathematics, 26.09.2019 14:30 murtaghliam1

Harlan used 3 1/2 kg of sand to make a large hourglass. to make a smaller hourglass, he only used 1 3/7 kg of sand. how much more sand did it take to make the large hourglass than the smaller one?

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Harlan used 3 1/2 kg of sand to make a large hourglass. to make a smaller hourglass, he only used 1...