GCF/LCM Word Problems

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest number that is a multiple of two or more numbers.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

What is the GCF of 18 and 24?

Back

The GCF of 18 and 24 is 6.

Front

What is the LCM of 3 and 4?

Back

The LCM of 3 and 4 is 12.

Front

If Jeremy has two pieces of wood measuring 90 inches and 72 inches, what is the longest length he can cut without leftovers?

Back

The longest length he can cut is 18 inches.

Front

If one sign blinks every 9 seconds and another every 15 seconds, when will they blink together again?

Back

They will blink together again in 45 seconds.

Front

What is the first caller to win both a $100 bill and movie tickets if every 30th caller wins $100 and every 40th wins tickets?

Back

The first caller to win both prizes is the 120th caller.

Front

How many girls and boys are there if there are 48 girls and 64 boys?

Back

There are 48 girls and 64 boys.