Topic 3 Part 2 Fractions And Percentages

Question 1

Method for finding a fraction of a quantity?

Answer 1

Just times both of the fractions

Question 2

Method for finding a whole of a quantity?

Answer 2

Usually just take the faction away from a whole fraction then do the rest

Question 3

Fraction to a decimal?

Answer 3

Divide top by bottom

Question 4

Decimal to percentages?

Answer 4

Times by 100

Question 5

Percentages to decimals?

Answer 5

Divide by 100

Question 6

Percentages to fractions?

Answer 6

Write as a fraction of 100 and simplify

Question 7

Method for expressing a quantity as a percentage of another?

Answer 7

Just divide the smaller number by the bigger and then times by 100

Question 8

Method for finding a percentage of something?

Answer 8

Divide percentage by 100 and times it by the other number

Question 9

Method for increasing by a percentage?

Answer 9

Divide percentage by 100 then times the other number than add your answer and original number together

Question 10

Method for decreasing by a percentage?

Answer 10

Same as increasing but take away your answer by the original.

Question 11

Method for percentage increase?

Answer 11

Increase divide the original then times by 100.

Question 12

Method for finding the percentage decrease?

Answer 12

Decrease divide by original time by 100

Question 13

Fractions to percentages?

Answer 13

Divide top by bottom then times by 100

Question 14

After spending 3/4 of her pocket money, Anna has £15 left

What fraction has she left?

Answer 14

1 - 3/4
4/4 - 3/4
= 1/4

Question 15

Express 14 as a percentage of 32

Answer 15

14 divided 32 X 100 = 43.75

Question 16

Find 64.5% of £8500

Answer 16

0.645 X 8500

= £5482.50

Question 17

Increase £60 by 4%

Answer 17

100 + 4 of £60
1.04 X 60
=£62.40