Find a fraction of an amount

How do we find a fraction of an amount?

• Divide by bottom, times by top

• Times by bottom, divide by top.

Calculate 1/3 of 15

• 5

• 3

• 45

• 15

calculate 1/10 of 160

• 1.6

• 16

• 160

• 1600

Calculate one quarter of 48

• 6

• 12

• 18

• 24

Calculate 1/5 of 150

• 60

• 90

• 30

• 120

Calculate 3/5 of 150

• 60

• 90

• 30

• 120

Calculate 3/4 of 120

• 90
• 30
• 60
• 100

calculate three quarters of 100

• 25

• 50

• 75

• 100

There are 40 eggs, 1/8 are rotten. How many eggs are rotten?

• 4

• 6

• 8

• 5

There are 60 eggs, 1/6 are rotten. How many are not rotten?

• 6

• 10

• 50

• 54