Fractions

Question 1

What is one quarter as a decimal?

Answer 1

0.25

Question 2

How do change a fraction into a decimal?

Answer 2

Divide the numerator by the denominator.
The numerator is the top number of a fraction
The denominator is the bottom number of the fraction
E.g. 1/5 = 0.2

Question 3

How do you. Hangs a fraction into a percentage?

Answer 3

Divide the numerator by the denominator and then multiply by 100.

Question 4

How do we add fractions?

How would I add two thirds to one quarter

Answer 4

Firstly you should make your denominators equal by finding the lowest common denominator
The lowest common denominator for 3 and 4 is 12
Then we need to keep the fractions equivalent. This involves multiplying the numerator.
So 2/3 becomes 8/12. And 1/4 becomes 3/12
Now that the denominators are the same we can add the numerator. This equals 11/12

Question 5

How do we convert mixed numbers into improper fractions and vice versa?

Answer 5

To change improper into a mixed number
Divide the numerator by the denominator and give your answer as a remainder.
The answer is how many wholes you have. The remainder stays as a fraction.
13/4= 3 and 1/4
Changing mixed numbers is the reverse
Multiply the whole numbers by the denominator then add to the current fraction
2 and 1/8. 2x8 = 16. 16+1=17. 17/8

Question 6

How do we cancel down fractions?

Answer 6

Cancelling down is the same as making your fraction into its lowest terms.
Find a common factor between the denominator and the numerator e.g. 12/20 the common factor is 4
Then divide both the numerator and the denominator by the factor. 3/5

Question 7

How do we make equivalent fractions?

Answer 7

Multiply the numerator and the denominator by the same number
E.g. 2/3= 12/18. Both the numerator and the denominator were multiplied by 6

Question 8

What do you do when you multiply fractions

Answer 8

Multiply the denominators together and then multiply the numerators together.
Cancel down your fraction
If you have a mixed number it must be converted to an improper fraction before multiplying

Question 9

How do you divide fractions?

Answer 9

Firstly change any mixed numbers to improper fractions.
Secondly flip the second fraction upside down so the numerator is now the denominator and vice versa.
Then multiply instead of dividing

Question 10

How do we calculate a fraction of a quantity?

Answer 10

Divide the quantity by the denominator and then multiply by the numerator.