Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
2. Compare and Order Rational Numbers
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Exercise 3 Page 275

Begin by rewriting the mixed numbers as improper fractions. How can you compare two fractions with different denominator?

6 23 > 6 12

Practice makes perfect
In this exercise, we are given two mixed numbers. 6 23 ? 6 12 First, we will rewrite these mixed numbers as improper fractions. Let's begin with 6 23.
6 23
6* 3+2/3
18+2/3
20/3
Now, let's do the same for the second number.
6 12
6* 2+1/2
12+1/2
13/2
Next, we will compare these fractions. To compare fractions with different denominators, we should first find a common denominator. Since neither of the denominators is a factor of another, we will multiply g the numerator and denominator of each fraction by the denominator of other. This will give us a common denominator.
20/3
20*2/3*2
40/6
Let's do the same for the second fraction.
13/2
13*3/2*3
39/6
Finally, we can make our comparison. Since 39 is less than 40, we know that the first value is more than the second value. 40/6 > 39/6 ⇔ 6 23 > 6 12 Let's draw it on a number line.