Unit 4 - FractionS

Question 1

What is another word for cancelling down?

Answer 1

Simplifying

Question 2

How do your simplify a fraction?

Answer 2

Find the highest common multiplier.

Divide top and bottom by that number.

Question 3

How do you change a mixed number to a fraction?

Answer 3

Mixed number x bottom.

Product + top.

Question 4

How do you multiply two fractions together?

Answer 4

Multiply tops

Multiply bottoms.

Question 5

How do you divide two fractions?

Answer 5

Second fraction upside down.

Multiply across.

Question 6

How do you add two fractions together?

Answer 6

Multiply bottoms.
Cross cross
Add tops.

Question 7

How do you subtract to fractions?

Answer 7

Multiply bottoms.
Cross cross
Take away tops.

Question 8

How do find the fraction of something?

Answer 8

Multiply number by top.

Divide number by bottoms.

Question 9

How do you write a ratio as a fraction?

Answer 9

Just have the divide sign to a colon.

2/9 = 2:9

Question 10

How do you simplify ratios?

Answer 10

Divide them both by the same number.

Question 11

How do you work with ratios of different units?

Answer 11

Multiply or divide until they have the same units.

Question 12

How do you get the ratio into 1:n or n:1?

Answer 12

Divide left to right or right to left.

Question 13

What is direct proportion?

Answer 13

When one number is multiplied, Theo there is multiplied by the same number.

Question 14

How do you find the ratio of something?

Answer 14

Add ratios.
Divide whole number by ratio total.
Multiply this by each value.
Add to check.

Question 15

How do you find x% of y?

Answer 15

Number x percentage over 100.

Question 16

How do you increase by an amount?

Answer 16

Multiply by 1 + percentage.

(90% = 1.90).

Question 17

How do decrease by an amount?

Answer 17

Multiply by 100 - percentage in a decimal.

( 90% = 0.10 ).

Question 18

How do you express x as a percentage of y?

Answer 18

Divide x by y then multiply by 100.

Question 19

How do you find the percentage change?

Answer 19

CHANGE divided by original x 100.

Question 20

How do you find the original value?

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Answer 20

1. Write amount as a percentage of the original value.
2. Divide to find 1%.
3. Multiply by 100.

Question 21

How do you go from a percentage to a fraction?

Answer 21

Percentage over 100.

Simplify.

Question 22

How do you get a fraction to a percentage?

Answer 22

Convert fraction to over 100.
OR
Numerator divided by denominator x 100.

Question 23

How do go from percentage to a decimal?

Answer 23

Divide by 100.

Question 24

How do you get a decimal to a percentage?

Answer 24

X 100.

Question 25

How do you get a decimal to a fraction?

Answer 25

Put decimal over 100. | Simplify down.

Question 26

How do you get a fraction to a decimal?

Answer 26

Denominator to 10, 100 or 100. OR NUMERATOR DIVIDE BY DENOMINATOR.

Question 27

How do you convert recurring decimal to a fraction?

Answer 27

1. Multiply by either 10, 100 or 1000. 2. New decimal take old decimal. 3. Take one from multiplier. 4. Divide new number by remaining multiplier.