Question

The sum of two rational number is -1/3,
one of them is -5/7, find the other​

Answer 1

Answer:

8/21

Step-by-step explanation:

let number = x

-5/7 + x = -1/3

x = -1/3 + 5/7

x = -7/21 + 15/21

x = 8/21

hope it helps you

Answer 2

Answer:

let the number to be added be x

then,

-5/7 + x = -1/3

x = -1/3 + 5/7

take lcm of 3 and 7

lcm is 21

-1×7/3×7 + 5×3/7×3

-7/21 + 15/21

= 8/21

so the other number which was to be added is 8/21