Question

1 -5 9. Express as a rational number as with 6 (i) numerator as - 5 (ii) denominator as - 18​

Answer 1

Answer:

Step-by-step explanation:

(i)  

20

=

5

×

4

∴

−

3

5

=

−

3

×

4

5

×

4

(Multiplying numerator and denominator by 4)

=

−

12

20

(ii)  

−

30

=

5

×

(

−

6

)

∴

−

3

5

=

−

3

(

−

6

)

5

(

−

6

)

      [Multiplying numerator and denominator by (-6)]

=

18

−

30

(iii)  

35

=

5

×

7

∴

−

3

5

=

−

3

×

7

5

×

7

  (Multiplying the numerator and denominator by 7)

=

−

21

35

(iv)  

−

40

=

5

×

(

−

8

)

∴

−

3

5

=

−

3

×

(

−

8

)

5

×

(

−

8

)

       (Multiplying the numerator and denominator by (-8)

=

24

−

40