Posted by **B** on Thursday, February 10, 2011 at 9:43am.

One morning, 8/9 of the customers at the diner ordered coffee. Regular coffee was ordered three times as much as flavored coffee. What fractional part of the customers orderd flavored coffee?

I did it this way 8/9x3/1= 24/9=8/3

It is wrong so please show me how to do this problem

- math 5th grade -
**Kate**, Thursday, February 10, 2011 at 1:40pm
First I would choose a number divisible by 9 to use as an example.

I chose 81.

If 8/9 of the customers ordered coffee, that's 8/9*81 = 72 customers.

If reg coffee was ordered three times as much as flavored, then you want to set it up like this:

3x + x = 72

4x = 72

x = 18

So 18 people ordered flavored coffee. 3(18)=54, so 54 people ordered regular coffee. If the total was 81 customers, then 18/81 ordered flavored coffee which reduces to 2/9.

- math 5th grade -
**shyu**, Saturday, February 12, 2011 at 3:56am
First I would choose a number divisible by 9 to use as an example.

I chose 81.

If 8/9 of the customers ordered coffee, that's 8/9*81 = 72 customers.

If reg coffee was ordered three times as much as flavored, then you want to set it up like this:

3x + x = 72

4x = 72

x = 18

So 18 people ordered flavored coffee. 3(18)=54, so 54 people ordered regular coffee. If the total was 81 customers, then 18/81 ordered flavored coffee which reduces to 2/9.

- math 5th grade -
**2w2w2w2e3rtet**, Monday, April 18, 2011 at 9:45pm
2/9

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