Learn about equivalent ratios to obtain theclear principle on ratio. We know that we usage ratios to compare numbers.

You are watching: Which ratio is equal to 15 20

How do we find two identical ratios by making use of multiplication and division?

To acquire a ratio tantamount to a provided ratio we multiply or division both the regards to the offered ratio through the exact same non-zero number. We will learn how to discover the tantamount ratios that a offered ratio by composing the proportion as a fraction and then to compare by making use of multiplication and also division.

**Solved examples to find two equivalent ratios:**

**1.** Give two identical ratios the 8 : 18.

**Solution:**

We will find the very first equivalent ratio of 8 : 18 by utilizing multiplication.

So, very first we need to write the givenratio together fraction,

**= 8/18**

**= (8 × 2)/(18 × 2) **

**= 16/36 **

**= 16 : 36 (one indistinguishable ratio),**

**So, 16 : 36 is an indistinguishable ratio that 8 :18.**

**Now we will find one more equivalent ratioof 8 : 18 by using division.**

**Similarly, very first we have to write thegiven ratio as fraction,**

**= 8/18**

**= (8 ÷ 2)/(18 ÷ 2) **

**= 4/9 **

**= 4 : 9 (another identical ratio)**

**So, 4 : 9 is an indistinguishable ratio that 8 :18.**

**Therefore, the two tantamount ratios of 8: 18 room 16 : 36 and 4 : 9.**

**2.**Frame two equivalent ratios that 4 : 5.

**Solution:**

To find** **two identical ratios the 4 : 5 we require to apply multiplicationmethod only to gain the answer in integer form.

First we should write the given ratio asfraction,

= 4/5

= (4 × 2)/(5 × 2)

= 8/10

= 8 : 10 is one indistinguishable ratio,

Similarly again, we have to write thegiven ratio 4 : 5 as fraction to get another equivalent ratio;

= 4/5

= (4 × 3)/(5 × 3)

= 12/15 is one more equivalent ratio

Therefore, the two indistinguishable ratios of 4: 5 space 8 : 10 and 12 : 15.

**Note:** In this inquiry we can’t apply divisionmethod to acquire the price in integer form because the G.C.F. The 4 and also 5 is 1.That means, 4 and 5 cannot be divisible by any type of other number except 1.

**3.** For the following ratio find the two tantamount ratios that 11 : 13.

**Solution:**

To find** **two equivalent ratios that 11 : 13 first we need to write the provided ratio together fraction,

11/13

= (11 × 2)/(13 × 2)

= 22/26

= 22 : 26 is one tantamount ratio

Similarly again, to get one more equivalent proportion of 11 : 13;

11/13

= (11 × 4)/(13 × 4)

= 44/52

= 44 : 52 is another equivalent ratio

Therefore, the two tantamount ratios that 11 : 13 room 22 : 26 and also 44 : 52.

**Note:** If a : b and also x : y space two tantamount ratios, we create a/b = x/y.

**Solved example to find three tantamount ratios:**

**4.** Find three equivalent ratios that 3 : 8.

**Solution:**

3 : 8 = 3/8 = (3 × 2)/(8 × 2),

= 6/16

= 6 : 16 is the first equivalent ratio.

3 : 8 = 3/8 = (3 × 4)/(8 × 4),

= 12/32

= 12 : 32 is the 2nd equivalent ratio.

3 : 8 = 3/8 = (3 × 6)/(8 × 6),

= 18/48

= 18 : 48 is the third equivalent ratio.

Therefore, the three indistinguishable ratios that 3 : 8 room 6 : 16, 12 : 32 and also 18 : 48.

See more: How Much Is 112 Grams In Pounds ? Convert 112 G To Lb 112G In Lbs And Oz

**6th grade Page****From tantamount Ratios to residence PAGE**