Question

The sum of two rational numbers is 4/21. If one of them is 5/7 , find the other.​

Answer 1

Let the rational no. be x.

Now, According to question

5/7+x=4/21

x=4/21-5/7

x=-11/21

Therefore the no is -11/21

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Answer 2

Answer:

HOPE YOU WILL UNDERSTOOD THIS

Step-by-step explanation:

LET THE OTHER NUMBER BE =X

GIVEN NUMBER=5/7

SUM OF BOTH NUMBER=4/21

NOW,

X+5/7=4/21

X=4/21-5/7

X=-11/21