Rey collected Three glasses of colored marbles.The first glass bas 27 red marbles the second one 36 green marbles and the third has 54 blue marbles he set the marbles into a set of boxes of each kind. What is the greatest number of marbles that he can put equally inside eaxh box

What is Asked:
What is Given:
What is operation:
What is number sentence:
What is Solution:
Check and look back:

Before, i will start the solution first you shall need to know about, what is GCF ?
GCF stands for the Greatest common factor. Now, i shall ask you: What is the GCF of 36 and 60. The ans will be: 12.
How did i get answer 12 ?
For that, find the factors of both numbers 36 and 60. then for finding GCF, multiply those factors which are common in both 36 and 60. ( See in the above attachment )

■. Now the Solution Starts:

Find the GCF of 27, 36 and 54. ( See in my right side of the attachment ).
You will find the GCF = 9.
That means, 9 is the greatest number of marbles that he can put equally inside each box.
Hence, the required ans: 9.

Things you should know about:

What is HCF, GCD ( or GCF ) and LCF ? ( in my answer, I had explained GCF ).
Don't confuse that HCF and GCF are same. HCF is mathematical term used in British English ( UK ) and GCF is also a mathematical term similar to HCF used in American English ( USA ).
HCF = Highest Common Factor, GCF = Greatest Common Factor and LCF = Lowest Common Factor.

If you find anymore doubts regarding on my answer. then plz send your queries to the comment section. i will help you ;))