Fractions

I am able to resolve fraction strategies in level 3.

A farmer is selling some of his animals.

1.  The farmer sells ¼ of his 72 cows.  Show how to work out how many cows he sells.

4 x 18 = ?

2 x 18 = ?

2 x 10 = 20

2 x 8 = 16  

20 + 16 = 36

1/2 of 36 is 18

36 doubled is 72

Another way

72 divided by 4 = 18

1/4 of 72 = 18

2. He sells ⅓ of his 45 pigs.  Show how to work out how many pigs he sells.

45 divided by 3 = 15

Another way

One third of 45 is 15

3.   He sells ⅙ of his 84 sheep.  Show how to work out how many sheep he sells.

84 divided by 6 = 14

Another way

6 x 14 = 84