If x= 1 10  and y= −3 8 , then  evaluate x + y, x – y, x × y and x÷y evaluate x + y, x – y, x × y and .

# evaluate x + y, x – y, x × y and evaluate x + y, x – y, x × y and .

1. A
, , and
2. B
, , and
3. C
, , and
4. D
, , and

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### Solution:

Here, we are given that and .
We will do the addition by taking the LCM as follows,

Next, we will do the subtraction by taking the LCM as follows,

Next, we will do the multiplication by multiplying the numerators and denominators of the given rational numbers as follows,

Now, we will perform the last operation i.e., division by taking the reciprocal of  as follows,

So, the results of the respective computations are , , and .
Hence, the correct option is (2).

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