## Thursday, November 16, 2006

### Qtypie's Scribe

Today Mr. Hanley was talking to us about ratios.

Difference between Fractions and Ratios

Fraction

4/13

4-Numerator->how many parts

13-Denominator->total number of parts

Ratio

4:9

4-part

9-part

Fractions and Ratios are 2 different things

A Fraction has a part and a whole

A Ratio has a part and a part

Ratio to Fraction

How to get a ratio from a fractions is you add the two parts together you get a whole. Thats the denominator. To get the numerator is you get the first number in front of the ratio

ex.4:9 denominator 4+9=13 numerator 4 =4/13

Fraction to Ratio

How to get a the ratio is you have to get the first number. you get it fromt he numerator. you subtract the denominator from the numerator which gives you second number

ex.4/13 first number- 4 second number- 4-13=9= 4:9

Here is and example that Mr. Hanley gave to us

if you have 12 pieces of fruit, 5 apples and 7 bananas.

What is the fraction the represents Apples.

What is the ratio of apples to bananas 5/12 5-number of apples 12-total numbers of fruit

5:7

5-apples

7-bananas

Another Example
4/11 4:7

7 number of oranges

4 number of white sticks

Class work
today in class these were the questions
change to a fraction
5:12
6:4
3:1
12:2

5/17
6/10
3/4
12/14

homework
Fractions
Decimals
%'s
Ratios

the next scribe will be jesse