McGraw Hill Integrated I, 2012
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McGraw Hill Integrated I, 2012 View details
4. Adding and Subtracting Rational Numbers
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Exercise 1 Page P16

When fractions have a common denominator, you only need to compare the numerators.

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We are given the following sentence. - 5/8 3/8 Before we try to compare the given values remember that, when a fraction is negative, the negative sign can be written in one of three places and it does not change the value of the fraction. -a/b = - a/b = a/- b With this in mind, let's move the placement of the negative sign in the first fraction to make our comparison more straightforward. -5/8 = - 5/8 When fractions have a common denominator, we only need to compare the numerators. Because -5 is less than 3, we know that - 58 is less than 38. -5 < 3 ⇒ - 5/8 < 3/8

Checking Our Answer

We can check our answer by finding the product of the given quantities in a calculator. Let's check our math!

We obtain the same result as before. Therefore, we were correct!

Extra

Fractions

For those of you who are interested in learning more about working with fractions, you can read more about them on the following pages.