Math 6 - Real World Least Common Multiple

Front

What is the Least Common Multiple (LCM)?

Back

The Least Common Multiple (LCM) of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

How do you find the LCM of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number and find the smallest multiple that appears in both lists.

Front

What is the LCM of 9 and 15?

Back

The LCM of 9 and 15 is 45.

Front

What is the LCM of 18, 24, and 36?

Back

The LCM of 18, 24, and 36 is 72.

Front

How can prime factorization help in finding the LCM?

Back

Prime factorization involves breaking down each number into its prime factors. The LCM can be found by taking the highest power of each prime factor from the numbers.

Front

What is the relationship between GCF and LCM?

Back

The relationship is given by the formula: LCM(a, b) = (a * b) / GCF(a, b).

Front

If two signs blink every 9 seconds and 15 seconds, when will they blink together?

Back

They will blink together every 45 seconds.

Front

If Lucy has 18 juice boxes, 24 bags of peanuts, and 36 apples, what is the greatest number of snack bags she can make?

Back

Lucy can make 6 snack bags.

Front

How do you determine when two joggers will meet again if they jog at different times?

Back

Find the LCM of the times it takes each jogger to complete a lap.

Front

What is the LCM of 15 and 25?

Back

The LCM of 15 and 25 is 75.