Glencoe Math: Course 1, Volume 1
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Glencoe Math: Course 1, Volume 1 View details
Chapter Review
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Exercise 1 Page 167

The decimal number 0.4 can be read as 4 tenths.

Category Fraction
Savings 2/5
Charity 3/20
Shopping 9/20
Practice makes perfect

We are given a table that shows how Eva budgets her weekly allowance. We want to rewrite each decimal as a fraction in simplest form.

Category Portion
Savings 0.4
Charity 0.15
Shopping 0.45
We will rewrite one decimal at a time. Let's start with the first one. 0.4This number can be read as 4 tenths. This means that we can write it as a fraction with a numerator of 4 and with a denominator of 10. From there we can simplify the fraction by dividing both the numerator and denominator by 2.
4/10
4÷ 2/10÷ 2
2/5
Now let's do the same with the portion of money for charity. 0.15 This number can be read as 15 hundredths. This means that we can write it as a fraction with a numerator of 15 and with a denominator of 100. After that, we can simplify the fraction by dividing both the numerator and denominator by 5.
15/100
15÷ 5/100÷ 5
3/20
Finally, we will rewrite the portion of money for shopping as a fraction. 0.45 This number can be read as 45 hundredths. This means that we can write it as a fraction with a numerator of 45 and with a denominator of 100. Then, we will divide both the numerator and denominator by 5.
45/100
45÷ 5/100÷ 5
9/20
Let's summarize our calculations in a table.
Category Portion Portion as a Fraction
Savings 0.4 2/5
Charity 0.15 3/20
Shopping 0.45 9/20