# How do you write the fraction #9/21# in simplest form?

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This is usually written as shown below.

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To write the fraction ( \frac{9}{21} ) in simplest form:

- Find the greatest common divisor (GCD) of the numerator and the denominator.
- Divide both the numerator and the denominator by the GCD.

In this case:

- The greatest common divisor of 9 and 21 is 3.
- Divide both the numerator and the denominator by 3:

[ \frac{9}{21} = \frac{9 \div 3}{21 \div 3} = \frac{3}{7} ]

So, ( \frac{9}{21} ) in simplest form is ( \frac{3}{7} ).

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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.

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.

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.

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