Adding/ Subtracting Fractions

Adding and Subtracting Fractions

100

What is the top number of a fraction called?

Numerator

200

What is the bottom number of a fraction called?

Denominator

300

True or False? You can add or subtract fractions with unlike denominators.

False

400

What is a fraction that has a whole number with it called?

Mixed Number

500

Explain one strategy for adding fractions with unlike denominators. 

Answers vary

Like Denominators

100

1/2 + 1/2 =

2/2

200

1/4 + 2/4 =

3/4

300

1/5 + 3/5 =

4/5

400

6/12 + 4/12 =

10/12

500

10/25 + 13/25 =

23/25

Unlike Denominators Easy

100

1/4 + 2/6

14/24

200

1/1 + 1/6 =

7/6

300

2/5 + 1/6 =

17/30

400

3/5 + 1/8 =

29/40

500

1/5 + 1/4 =

9/20

Unlike Denominators Medium

100

3/5 + 1/7 =

26/35

200

2/4 + 3/9 =

30/36

300

5/10 + 1/3 =

25/30

400

1/8 + 3/5 =

29/40

500

8/12 + 1/20 =

172/240

Unlike Denominators Hard

100

2/9 + 3/10 =

47/90

200

12/20 + 10/15 =

380/300

300

8/20 + 3/15 =

260/300

400

10/15 + 3/9 =

135/135

500

20/40 + 30/60 =

2400/2400