Answer:
Below in bold.
Step-by-step explanation:
I won't do all these but you should get the idea of how to do them from the following. Be careful with the units if they are given . You must convert both values to the same unit before working out the percentages.
a. What proportion of 15 is 5:
As a fraction it is 5/15 = 1/3.
Now convert to a percentage by multiplying by 100:
1/3 * 100 = 33.33%
b. 20 and 10
= 10/20 = 1/2
1/2 * 100 = 50%.
e. £30 and £12
= 12/30
= 2/5
= 2/5 * 100 = 40%.
h. 6.4 is 0.4
= 0.4 / 6.4
= 4/64
= 1/16
= 1/16 * 100 = 6.25%
i. £144 is 12p
Here we convert the 2 values to pence:
£144 = 144 * 100 = 14,400p
The fraction is 12/14,400
= 1/1200
= 1/1200 * 100 = 0.083%
j. 1.2 m is 30 cm
Convert 1.2 m to cm
= 1.2 * 100 = 120
The fraction is 30/120 = 1/4
= 1/4 100 = 25%.
