kungfu math p3 slide7 (addition fraction)

• addition of two related fractions within one whole

What will we learn today?

Fractions Addition

Let’s recap what we have learnt

in the previous lecture.

Equivalent Fractions

Equivalent Fractions have the same value, even though they may look different.

Looking the diagram, we can say that

Try these out!

1)½ + ½ =

2)⅛ + ⅛ =

Solutions

1)½ + ½=

2)⅛ + ⅛ =

2

2

2

8

2 out of 2 parts gives 1 whole.= 1

For addition, we do not add the denominators.Make sure the denominators of the fractions are the same before you addthe numerators.*Did you notice that the answer is not in its simplest form?

⅛ + ⅛ = =2

8

1

4

÷2

÷2

Try these out!List the next two equivalent fraction of the given fraction.

1)½=

2)⅛=

Try these out!List the next two equivalent fraction of the given fraction.

1)½=

2)⅛=

2

4

2

16

3

6

3

24

,

,

3 simple steps to add fractions:

• Step 1– Make sure the bottom numbers

(denominators) are the same

• Step 2– Add the top numbers (numerators), put the

answer over the denominator.

• Step 3– Simplify the fraction (if necessary).

For example

Simplify the fraction (if necessary).

Add the top numbers (numerators), put the answer over the denominator.

Are you ready to try out the questions?