Multiplying and Dividing Fractions

Multiplying

100

1/2*1/2

1/4

200

2/5*1/4

2/20 or 1/10

300

3/5*7/6

21/30

400

4/2*9/5

36/10 or 18/5 or 3 3/5

500

2/1*7/9

1 5/9

1/2

100

2/4*1/2

2/8 or 1/4

200

6/3*1/2

6/6 or 1

300

5/2*1/2

5/4

400

6/3 divided by 1/2

12/3 or 4

500

9/7 divided by 1/2

2 4/7

???

100

What does KCF stand for?

Keep, change, flip

200

What does keep in KCF mean?

It means to keep the first fraction

300

What does change mean in KCF?

It means to change the division sign to a multiplication sign

400

What does flip mean in KCF?

It means to flip the second fraction

500

Is multiplying or dividing fractions easier?

Multiplying of course

3/4

100

2/4*3/4

6/16 or 3/8

200

6/3*3/4

18/12 or 3/2

300

5/2*3/4

15/8 or 1 7/8

400

6/3 divided by 3/4

24/9 or 2 2/3

500

9/7 divided by 3/4

1 5/7

Dividing

100

1/2 divided by 1/8

8/2 or 4

200

2/3 divided by 3/4

8/9

300

5/6 divided by 1/4

20/6 or 10/3 or 3 1/3

400

7/8 divided by 9/10

35/36

500

6/7 divided by 9/9

6/7