Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
1. Rational Numbers
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Exercise 36 Page 7

The absolute value of a number is its distance from 0 on the number line. Since distance is always greater than or equal to 0, the absolute value of any number is greater than or equal to 0.

- |1 14| > - |- 1 38|

Practice makes perfect

We want to complete the given statement. To do so, we will evaluate the absolute values on both sides.

- |1 14| - |- 1 38|

The absolute value of a number is the distance between this number and 0 on the number line. Since distance is always greater than or equal to 0, the absolute value of any number is greater than or equal to 0. The absolute value of a non-negative number is equal to the number, while the absolute value of a negative number is equal to its opposite.

absolute value
With this in mind, let's simplify the absolute values! ccc - |1 14|=- 1 14 [0.9em] - |- 1 38|=- 1 38 Next, we can write those mixed numbers as decimal numbers to make it easier for us to compare them. Let's start with - 1 14.

- 1 14
- 1* 4+1/4
- 4+1/4
- 5/4
- 1.25

Next, let's do the same with - 1 38.

- 1 38
- 1* 8+3/8
- 8+3/8
- 11/8
- 1.375

Now, we will plot the numbers on a number line to see which one is greater.

plotting point

We can see that - |1 14| is located to the right of - |- 1 38|. This means it is greater than - |- 1 38|. With this in mind, we can complete our statement.

- |1 14| > - |- 1 38|