Irene, Abi and Gem were each given a piece of streamer of equal length. Irene cut hers into equal lengths of 4 m, Abi cut hers into equal lengths of 5 m, and Gem cut hers into equal lengths of 8 m. If there were no remainder in each case, find the shortest length of streamer given to each of them.
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40
Multiples of 8: 8, 16, 24, 32, 40
Shortest length of streamer given to each of them
= Lowest common multiple of 4 m, 5 m and 8 m
= 40 m
Answer(s): 40 m