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Big Ideas Math: Modeling Real Life, Grade 7
BI
Big Ideas Math: Modeling Real Life, Grade 7 View details
3. Converting Between Fractions and Decimals
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Exercise 2 Page 62

Start by writing the given mixed number as a fraction. Then, divide the numerator by the denominator.

- 7.375

Practice makes perfect

We want to write the given mixed number as a decimal. - 7 38 We will first rewrite it as a fraction. Let's also ignore the negative sign for just a moment.

7 38
â–¼
Rewrite 7 38 as 59/8
MixedToFrac

a bc=a* c+b/c

7* 8+3/8
Multiply

Multiply

56+3/8
AddTerms

Add terms

59/8

We found that 7 38 is equal to 59 8 when it is written as a fraction. This means that we actually want to find the quotient 59÷ 8. We find the quotient by dividing the numerator of the fraction by its denominator. Let's do it!

We found that 598 written as a decimal is 7.375. Since we previously found that 7 38 is equal to 598, we can say that 7 38 written as a decimal is 7.375. 7 38= 598=7.375 Therefore, - 7 38 is equal to - 7.375.

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arrow_right Self-Assessment for Concept & Skills p.63
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