Question

The sum of two rational number is minus 3 if one of them is minus 10 by 3

Answer 1

ANSWER

Let the required number be x. Then,

=(−15/7)+x=(−3)

By sending (−15/7) from left hand side to the right hand side it change to −(15/7)

x=(−3)−(−15/7)

LCM of 1 and 7 is 7

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

Now,

(1×7)

(−3×7)

=

7

−21

=

(7×1)

(−15×1)

=

7

−15

Then,

=(−21/7)−(15/7)

=−(21+15)/7

=−6/7

Hence the required number is (−6/7)

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Answer 2

Answer:

1/3

Step-by-step explanation:

Let the number be x.

==: -10/3 + x = -3

==: x = -3 + 10/3

==: x = -9/3 + 10/3

==: x = 1/3

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