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Envision Math 2.0: Grade 7, Volume 1

EM

Envision Math 2.0: Grade 7, Volume 1 View details

2. Understand Rational Numbers

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Exercise 21 Page 18

To write a fraction as a decimal, divide the numerator by the denominator.

117.755

Practice makes perfect

We want to find the decimal equivalent of 117 151200. Before we evaluate the expression, let's first rewrite the expression so that all of the numbers are fractions.

117 151200

a bc=a* c+b/c

117* 200+151/200

Multiply

23 400+151/200

Add terms

23 551/200

Now, we will write this fraction as a decimal. To do so, we divide the numerator by the denominator.

Applet to compute the division of two numbers

We found that 117 151200 expressed as a decimal is 117.755.

Subchapter links

Do You Understand? p.16

Do You Know How? p.16

Practice & Problem Solving p.17-18

Assessment Practice p.18