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# Fill in the following blanks:

15/18 = _ /6 = 10/_ = _/30

[Are these equivalent ratios?]

**Solution:**

We use the concept of ratio and proportion to answer the given question.

We know that,

15/18 = _ /6

Let this blank be x.

Therefore, 15/18 = x/6

⇒ 15 x 6 = 18x

⇒ 90 = 18x

⇒ x = 90/18

⇒ x = 5

Therefore, 15/18 = 5/6

We know that,

15/18 = 10/_

Let this blank be y.

Therefore, 15/18 = 10/y

⇒ 15y = 10 x 18

⇒ 15y = 180

⇒ y = 180/15

⇒ y = 12

Therefore, 15/18 = 10/12

We know that,

15/18 = _ /30

Let this blank be z.

Therefore, 15/18 = z/30

⇒ 15 x 30 = 18z

⇒ 450 = 18z

⇒ z = 450/18

⇒ z = 25

Therefore, 15/18 = 25/30

Therefore, 15/18 = 5/6 = 10/12 = 25/30

Now, are these equivalent ratios?

Yes, these are equivalent ratios since all the ratios are the same.

NCERT Solutions for Class 6 Maths Chapter 12 Exercise 12.1 Question 5

## Fill in the following blanks:

15/18 = _ /6 = 10/_ = _/30

[Are these equivalent ratios?]

**Summary: **

Using the concept of ratio and proportion, it can be concluded that the blanks are 5, 12 and 25 respectively. The ratios 15/18 = 5/6 = 10/12 = 25/30 are equivalent ratios since all the ratios are the same.

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