How can you tell when the LCM of two numbers will equal one of the numbers or equal the product of the numbers

1 answer:

7 0

When one number will divide exactly into the other one then the other one will be the LCM. For example the LCM of 4 and 8 = 8 .

When they do not divide as above then the product of the numbers may be the LCM. For example the LCM of 3 and 4 = 3*4 = 12.

The product is not always the LCM. It might be a lower number . For example the LCM of 4 and 6 is not 24 but 12. ( 24 / 2).

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notsponge [240]

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3 years ago

Bess [88]

The reflection of a point A(a, b) across the x-axis, is the point A'(a, -b).

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3 years ago

Dimas [21]

Note that

10² = 100

0.08² = 0.0064

and

101.6064 = 100 + 1.6 + 0.0064

It also happens that

1.6 = 2 • 10 • 0.08

which means

101.6064 = 100 + 1.6 + 0.0064

101.6064 = 10² + 2 • 10 • 0.08 + 0.08²

101.6064 = (10 + 0.08)²

101.6064 = 10.08²

which means

√101.6064 = 10.08

which, to one decimal place, is approximately 10.1.

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3 years ago

MakcuM [25]

5 (x-2y)=20
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4 years ago

Ivahew [28]

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3 years ago