Adding/Subtracting Fractions

When adding fractions, what part of the fractions have to be the same?

• The numerator

• The denominator

• The entire fraction

• None of it

When subtracting a fraction, what part of it has to be the same?

• None of it

• The numerator

• Both the numerator and denominator

• The denominator

5/10 + 2/10

• 3/10

• 10/10

• 7/10

• 7/20

2/6 + 3/6

• 5/6

• 1/6

• 5/12

• 6/12

2/12 + 4/12

• 8/12

• 6/12

• 8/24

• 6/24

Decompose this fraction:

10/12

• 5/12 + 5/12

• 5/6 + 5/6

• 2/12 + 5/12

• 2/6 + 5/6

Decompose this fraction:

9/12

• 2/12 + 7/12

• 3/12 + 3/12

• 2/6 + 7/6

• 3/6 + 3/6

4/5 - 2/5

• 2/5

• 2/0

• 6/5

• 2/10

5/6 - 2/6 =

• 3/0

• 3/6

• 3/12

• 10/6

Decompose this fraction:

7/8

• 4/4 + 3/4

• 2/8 + 2/8 + 3/8

• 5/5 + 2/3

• 2/2 + 5/6