Decimals and Fractions

Adding Decimals and Fractions

100

12.54+21.08

33.62

200

9+5.68

14.68

300

(3/8)+(1/2)

7/8

400

4(2/3)+6(3/7)

11(2/21)

500

Ms. Herlihy's budgets 1/2 of her income for fixed expenses, such as, rent and bills. She budgets 1/8 of her income for savings. How much of her income is left after she does her budgeting?

3/8

Subtracting Decimals and Fractions

100

123.45-12.345

111.105

200

-12.54-16.951

-29.491

300

(7/8)-(5/12)

(11/24)

400

5(5/6)-3(1/6)

2(2/3)

500

In 2001, the population of the United States was about 2/7 billion people. It is projected that by 2025, there will be over 1/3 billion people in the United States. How muc will the population increase by 2025?

1/21 billion

Multiplying Decimals and Fractions

100

1.9*7.22

13.718

200

10.58*(-2.54)

-26.8732

300

(2/9)*(7/10)

(7/45)

400

2(2/11)*(2/3)

1(5/11)

500

A pie crust recipe calls for 4/5 teaspoon of baking powder. Alice is making 13 pies. How much baking powder does she need?

10(2/5)

Dividing Decimals and Fractions

100

6÷0.25

24

200

78.74÷12.7

6.2

300

1/5÷1/4

4/5

400

2 (1/2)÷2 (1/3)

1 (1/14)

500

The members of a book club met at a restaurant for dinner. The total bill was $112.95 and they shared the bill equally. Each person paid $12.55. How many members are there in the book club?

9 members

Solving Equations with Decimals and Fractions

100

t+0.77=9.3

t=8.53

200

p-1.34=-11.8

p=-10.46

300

w+4/15=3 (1/3)

w=3 (1/15)

400

(5/6)m=(8/9)

m=1 (1/15)

500

(-1/11)x=2 (1/10)

x=-23 (1/10)