To write: The two other true proportions for \frac{21}{27}=\frac{7}{9}.

Line

Line

Answered question

2021-08-15

To write:
The two other true proportions for 2127=79.

Answer & Explanation

un4t5o4v

un4t5o4v

Skilled2021-08-16Added 105 answers

Approach:
A proportion is true, if its ratios are equal. As ratios are fractions, one way to determine whether the given proportion is true or false by writting both the ratios in simplest form. Another way is by comparing their cross product.
If the cross product are equal, then the proportion is said to be true. If cross product are not equal, then the proportion is false.
Calculation:
If two ratios are equal in a proportion, then it is called a true proportion.
If it is a true proportion, their cross product are equal.
2127=79
21×9=27×7
Therefore, the two other true proportions will be
217=279 and 2721=97
Final statement:
The two other true proportion are 217=279 and 2721=97
Jeffrey Jordon

Jeffrey Jordon

Expert2021-12-17Added 2605 answers

Answer is given below (on video)

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?