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Q: Why should you find a LCM?

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When you want to add or subtract fractions and need to find a common denominator.

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

Two or more numbers are needed to find the LCM

Find the LCM of the first two numbers and then find the LCM of that number and the third one. That answer will be the LCM of all three.

154

The LCM is 60.

The LCM is: 117

The LCM is: 84

The LCM is: 120

The LCM is 21.

The LCM is 300.

The LCM is: 2,520

The LCM is: 116

The LCM is: 14

The LCM is 87.

The LCM is: 336

LCM = 9,384

The LCM is 387

The LCM is essentially the same thing as the lowest common denominator. To find the LCD, find the LCM of the denominators.

Two or more numbers are needed to find their LCM

Two or more numbers are needed to find the LCM

You can, but there are more efficient ways to find the LCM.