Envision Grade 4 Topic 9

Vocabulary

100

What is the top number in a fraction called?

The numerator

200

What is the bottom number in a fraction called?

The denominator

300

What is a number that represents a whole?

A whole number

400

What is a whole number and a fraction called?

A mixed number

500

What are two fractions that are equal in size called?

Equivalent Fractions

Adding Fractions

100

1/4+1/4=

2/4

200

3/7+2/7=

5/7

300

11/20+8/20=

19/20

400

17/25+4/25=

21/25

500

13/100+17/100=

30/100

Subtracting Fractions

100

3/5-1/5=

2/5

200

6/7-3/7=

3/7

300

19/20-11/20=

8/20

400

21/25-17/25=

4/25

500

32/100-12/100

10/100

Adding and Subtracting Mixed Numbers

100

1  7/8 + 2  3/8

4  2/8

200

5  4/8 + 2  1/8

7  5/8

300

3  3/6 + 1  5/6

5  2/6

400

5  1/5 - 3  3/5

1  3/5

500

9  - 3  3/8

5  5/8

Decomposing

100

Decompose 5/7

3/7 + 4/7

200

Decompose 3/4 into Unit Fractions 

1/4 + 1/4 +1/4

300

Decompose 6/8 

3/8 + 3/8

400

Decompose 5/6 two different ways 

2/6 + 3/6 

1/6 +1/6 + 1/6 +1/6 +1/6

500

Decompose 8/12 into unit fractions and one other way 

1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 +1/12

2/12+6/12