Question

sum of two rational number is 7/5 . if one of them is -5/7 find the other one​

Answer 1

Answer:

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Step-by-step explanation:

Let the required number be x. Then,

=(5/7)+x=(4/21)

By sending (5/7) from left hand side to the right hand side it change to −(5/7)

x=(4/21)−(5/7)

LCM of 21 and 7 is 21

Express each of the given rational numbers with the above LCM as the common denominator.

Now,

(21×1)(4×1)=214

=(7×3)(5×3)=2115

Then,

=(4/21)−(15/21)

=(4−15)/21

=(−11/21)

Hence the required number is (−11/21)

Answer 2

Answer:

ans is 74/35

Step-by-step explanation:

hope it will help you