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6/7 ÷ 8/9 =

A.

1 1/28

B.

1 1/9

C.

27/28

D.

48/63

Answer and Explanation

The Correct Answer is C

To divide  by ​, we multiply  by the reciprocal of ​:

          ÷  =  ×  ​

Now, perform the multiplication:

        ×  =  

Simplify the fraction ​:

The greatest common divisor (GCD) of 54 and 56 is 2, so:

   ​ =

Thus, the correct answer is:

   ​

So the correct choice is: ​


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Related Questions

Correct Answer is B

Explanation

To find out how many days it takes for a culture of 3000 cells growing at a rate of 7% per day to increase by 630 cells, follow these steps:

Determine the daily growth:

Dailygrowthrate=7%=0.07

Calculate the daily increase in cells:

Dailyincrease=3000×0.07=210cellsperday

Determine the total increase needed:

Totalincreaseneeded=630cells

Calculate the number of days needed:

Numberofdays = ​

Numberofdays = = 3days

Therefore, the correct answer is: 3 days

Correct Answer is C

Explanation

Convert each given option to a percentage and then compare:

86.2%: This is already in percentage form: 86.2%.

​: Convert to percentage by multiplying by 100:

×100=86.2%

8.62: Convert to percentage by multiplying by 100:

8.62×100=862%

86.2: Convert to percentage by multiplying by 100:

86.2×100=8620%

So, the correct option that is the same as 862% is: 8.62

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