Question

(h)The sum of two rational numbers is 4/21.If one of them is 3/7 then find the other.​

Answer 1

Answer:

-5/21

Step-by-step explanation:

if sum of two rational no. is 4/21

so,

it means that

x + y = 4/21

value of y is given 3/7

x + 3/7 = 4/21

x = 4/21 - 3/7

take lcm

x= 4/21 - 9/21

x= -5/21

Answer 2

Answer:

-5/21

Step-by-step explanation:

4/21 - 3/7

4-9 /21

-5/21