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Q: Can you get the LCM of 2 numbers by multiplying them and then dividing the answer by 2?

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The inverse of multiplying is dividing, so dividing by 2.

It won't work for all numbers. I tried with 1 and got a 0.230769...

because there the same

you add all numbers and you keep the sign of the bigger number -9

No, taking ½ of a number is the same as dividing it by 2. Dividing a number by ½ is the same as multiplying it by 2.

1/2

It depends on the numbers. For example, dividing by 1 1/2 (one and a half) is exactly the same as dividing by 3/2, since both represent the same number.In general, if you divide by a larger number, the result will be less.

no, dividing a number is halving it, multiplying iy by 2 is doubling it

Multiplying by 2 (or, equivalently, dividing by a half).

Yes, it is!:)

It is 84 by multiplying both numbers because 7 is a prime and the prime factors of 12 are 2*2*3

The LCM of 2 and 4 is not 8.

Dividing anything by a fraction is the same as multiplying by the fraction's reciprocal. For example, 4 Ã· 2/7 = 4 x 7/2 = 14

LCM (2, 4) = 4 which is not 2*4.

You get it by multiplying the radius by 2 or dividing circumferance by 3

Multiplying is the opposite of dividing, whether it be using integers or other numbers and variables. Technically, multiplying and dividing integers is different, but the two processes are very strongly related to each other. For example, if one multiplies two and two together, one gets four as an answer. If one then divides four by two, one gets two. The multiplication of the 2 was reversed by the division of the 2.

3 * 4 - 2 - 7 = 12 - 2 - 7 = 10 - 7 = 3

The LCM of 2 numbers can be one of those numbers when the large of the 2 numbers is 2 times the smaller one of those numbers. For example the LCM of 2 and 4 is 4. For example the LCM of 5 and 10 is 10.

1 and 2 has an LCM of 2.

You need at least two numbers to find an LCM.

The LCM of 2 and 4 is 4. The product of 2 and 4 is 8.

At least 2 numbers or more are needed for numbers to have a LCM

yes you do, for example: 2 is a division of 1

The numbers 2 and 30 have a GCF of 2 and an LCM of 30.