Question

Express 3/4 as a rational number whose denominator is 20

Answer 1

Answer:

Step-by-step explanation:

Multipling 3/4 by 5

3×5=15

4×5=20

∴ A fraction with denominator 20 is expressed above which is 15/20

∉ Hope it helps ∉

Answer 2

Given :  Rational number 3/4

To Find : Express 3/4 as a rational number whose denominator is 20

Solution:

To Express 3/4  as a rational number with denominator  20

We will multiply  Numerator & denominator with

Hence

3/4

= 3 * 20  / ( 4 * 20 )

Now we will factorize 20

20 = 2 * 2 * 5  

and replace numerator with factors

= 3 * 2 * 2 * 5 / ( 4 * 20)

= 3 * 4 * 5 / (4 * 20)

Cancel out 4 from numerator & denominator

= 3 * 5 / 20

= 15/20

15/20  = 3/4

3/4 expressed as 15/20 a rational number whose denominator is 20

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