posted by Gracie .
List the common multiples from 1 to 100 for each pair of numbers. Then find the least common multiple for each pair.
8 and 12, 3 and 15, 7 and 11, 9 and 10, 24 and 36, 20 and 25, 42 and 14, 30 and 12
Then find pairs of numbers for which the least common multiple equals the product of the two numbers.
Then look at the pairs of numbers you found in that part and tell what is true about all three pairs of numbers ?