# How do you simplify #x/3 - x/7#?

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To simplify ( \frac{x}{3} - \frac{x}{7} ), you can find a common denominator and then combine the terms:

- Find the least common multiple (LCM) of 3 and 7, which is 21.
- Rewrite each fraction with the common denominator of 21: ( \frac{7x}{21} - \frac{3x}{21} )
- Combine the numerators: ( \frac{7x - 3x}{21} )
- Simplify the numerator: ( \frac{4x}{21} )

So, ( \frac{x}{3} - \frac{x}{7} ) simplifies to ( \frac{4x}{21} ).

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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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