Question

Add the following rational number ​

Answer 1

Answer:

take l.c.m

l.c.m is 21

-(2*3)+(4)/21

-6+4/21

-2/21

that's the answer:)

Answer 2

Answer:

-10/21 is the answer

Step-by-step explanation:

(2/-7)  +(4/-21)

these can be written as -2/7 and -4/21 respectively

L.C.M of 7 and 21 is 21

(-6)+(-4) whole divided by 21

-10/21

hope it was helpful .................