# A cyclist takes part in a race with four stages. In the first stage he completes #5/12# of the entire course, in the second he complets #7/20# of the course #1/6# in the third . What fraction is the fourth stage?

To solve find a common denominator so that all the fractions can be added.

# 25/60 + 21/60 + 10/60 + x = 1 add the numerators to give

# x = 4/60 divided both the denominator and numerator by 4

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The cyclist completes 1/3 of the course in the fourth stage.

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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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