Explain why it works to break apart a number by place values to multiply

2 answers:

kramer2 years ago

6 0

Well first of all if I had a multiplication question such as 12,000×1000 of course you would know it would be 12,000 well you would always use your place value chart saying ones tens hundreds thousands and thousands and hundreds

kow [346]2 years ago

4 0

If you had a problem like 80x20 you wouldn't know what that was but you can take out the 0's and do 8x2 which is 16 then add back both 0's to make 1,600

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The least common multiple of two whole numbers is 12. The ratio of the

mihalych1998 [28]

9514 1404 393

Answer:

6 : 4

Step-by-step explanation:

The product of the ratio values is 3×2 = 6. This means the two numbers will have a GCF of 12/6 = 2. So, the two numbers are ...

3×2 : 2×2 = 6 : 4

_____

I think of GCF and LCM problems in terms of a "diagram" that looks like this:

(a [ b ) c ]

That is, the two numbers can be written in a form such that one is (a·b), the other is [b·c], their greatest common factor is b, and their least common multiple is a·b·c.

The ratio of the two numbers would be a : c. The product ac differs from the LCM by a factor of b, the GCF. Of course, b = abc/(ac), which is how we got the above answer.

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Answer:

Step-by-step explanation:

divide 18 into three

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