Slide 1

ByYour Name

Example:
12
12
x

The shaded area represents :

If we take this times :

Half of the shaded area equals .

To do the problem without using pictures:
12
1 2
x
=
?

First, multiply the top numbers:
12
1 2
x
1 x 1 = 1

Then, multiply the bottom numbers:
12
1 2
x
2 x 2 = 4

Your answer is:
12
1 2
x
24
=

Try Some More:
1/2 x 1/3 = 1/6

1/4 x1/2 = 1/8

1/2 x 3/4 = 3/8