Question

How do I find the least common multiple of each set of numbers

1. 5 and 6 ____
2. 6 and 9 ____
3. 6, 12, and 9 ____
4. 3, 9, and 15 ____

Answer 1

multiply each number by the other number (i.e. 5 x6)
so 1. 30
2. 45
count by the highest number and see which one is the least common one (12, 24, 36)
3. 36
4. 45