Question
Fiona, Hilda and Vanessa were each given a piece of ribbon of equal length. Fiona cut hers into equal lengths of 3 m, Hilda cut hers into equal lengths of 6 m, and Vanessa cut hers into equal lengths of 10 m. If there were no remainder in each case, find the shortest length of ribbon given to each of them.
4 m

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Fiona, Hilda and Vanessa were each given a piece of ribbon of equal length. Fiona cut hers into equal lengths of 3 m, Hilda cut hers into equal lengths of 6 m, and Vanessa cut hers into equal lengths of 10 m. If there were no remainder in each case, find the shortest length of ribbon given to each of them.