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McGraw Hill Glencoe Geometry, 2012

MH

McGraw Hill Glencoe Geometry, 2012 View details

2. Angles and Parallel Lines

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Exercise 59 Page 186

Calculate the numerator and denominator separately.

$1$

Practice makes perfect

In this case we want to simplify a fraction, which can be considered a grouping symbol.

\frac{1 6 - 1 2}{1 5 - 1 1} = \frac{( 1 6 - 1 2 )}{( 1 5 - 1 1 )}

Therefore, we will evaluate the expressions in the numerator and denominator individually before completing the division.

Numerator

As we can see, there is only subtraction in the numerator, so let's calculate this difference.

16 - 12 = 4

Denominator

There is also only subtraction in the denominator. Let's calculate this difference, too.

15 - 11 = 4

Quotient

Finally, combining these two results, we can simplify the given expression.

\frac{4}{4} = 1

Alternative Solution

Using a Calculator

We can also evaluate this expression using a calculator. To do so, type it as shown below.

Subchapter links

Check Your Understanding p.183

Practice and Problem Solving p.183-185

H.O.T. Problems p.185

Standardized Test Practice p.186

Spiral Review p.186

Skills Review p.186