Question

add the rational numbers
anyone tell the answer please ​

Answer 1

Answer:

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$1)\frac{3}{7} + \frac{2}{7} = \frac{5}{7}$

$2) \frac{ - 5}{17} + \frac{ 9}{17} = \frac{4}{17}$

3) 6/-21 and -19/21

6+(-19)/-21

-13/-21

13/21

4) 2 and 7/18

LCM of 1 and 18= 18

2/1×18/18= 36/18

7/18×1/1= 7/18

36+7/18= 43/18

5) -4 and 3/5

LCM of 1 and 5= 5

-4/1×5/5= -20/5

3/5×4/4= 12/20

-20+12/20

-8/20

-4/10

-2/5

6) 1/15 and 3

LCM of 15 and 1= 15

1/15×1/1= 1/15

3/1×15/15= 45/15

1+45/15

46/15

7) 31/-32 and -2

LCM of 32 and 1= 32

-31/32×1/1= -31/32

-2/1×32/32= -64/32

-31-64/32

-95/32

8) -15/42 and 13/17

LCM of 42 and 17= 714

-15/42×17/17= 255/714

13/17×42/42= 546/714

255+546/714

801/714

9) 13/-31 and-5/9

LCM of 31 and 9= 279

-13/31×9/9= -117/279

-5/9×31/31= -155/279

-117-155/279

-272/279

Answer 2

hopefully its helpful for you :)