Question

Express the following rational numbers as decimals numbers
I. i) 242/1000 ii) 354/500 iii) 2/5 iv) 115/4
II. i) 2/3 ii) -25/36 iii) 22/7 iv) 11/9

Answer 1

1-242/1000
= 121/500

= 121 ÷ 500

= 0.242

 ii) 354/500
= 177/250

= 177 ÷ 250

= 0.708


iii) 2/5 
= 2/5

= 2 ÷ 5

= 0.4
iv)115/4
= 115/4

= 115 ÷ 4

= 28.75

II. i) 2/3 ii) -25/36 iii) 22/7 iv) 11/9

i) 2/3

= 2/3

= 2 ÷ 3

= 0.666667

ii) -25/36 

= -25/36

= -25 ÷ 36

= -0.694444


22/7

= 22/7

= 22 ÷ 7

= 3.142857


11/9

= 11/9

= 11 ÷ 9

= 1.222222