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How do you know if the ratios 4/2 and 20/6 forms a proportion?

Answer 1

Autumn Arnold

There are 2 ways to do this problem. Both ways state that #4/2 != 20/6#. They are not in proportion.

There are two ways to do it:

Division

You could divide the numerator by the denominator of each fraction to see if they are equal/in proportion or not:

#4/2 = 2#

#20/6 ~~ 3.33#

Thus, they do not form a proportion.

LCM of Denominator

You could take both the denominators to one value, and see if the numerators of the fractions are the same:

#4/2# will become #(4*3)/(2*3)#

#=12/6#

Now, both the fractions have the same denominator, but the numerators are not the same number:

#12/6 != 20/6#

Thus, they do not form a proportion.

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Answer 2

Nova Allen

To determine if the ratios 4/2 and 20/6 form a proportion, you can cross multiply and see if the results are equal.

Cross multiplying for 4/2 and 20/6:

For 4/2: 4 * 6 = 24

For 20/6: 20 * 2 = 40

Since 24 is not equal to 40, the ratios 4/2 and 20/6 do not form a proportion.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.