 Hello and welcome to the session. In this session we discussed the following question which says, divide the sum of 12 upon 5 and minus 11 upon 6 by the product of minus 17 upon 10 and 2 upon 3. Now let's move on to the solution. First let's consider the rational numbers 12 upon 5 and minus 11 upon 6. We need to find the sum of these two rational numbers. This would be further equal to 12 upon 5 minus 11 upon 6. So now in the denominator we have 30. Since the LCM of the denominators of the two rational numbers that is 5 and 6 is 30 and we know that 5 6 times is 30 so here we have 12 into 6 minus now 6 5 times is 30 so this would be 11 into 5. So we have this is further equal to 72 minus 55 upon 30 which further is equal to 17 upon 30. So now we have the sum of the rational numbers 12 upon 5 and minus 11 upon 6 is equal to 17 upon 30. Next we need to find the product of the rational numbers minus 17 upon 10 and 2 upon 3. So minus 17 upon 10 into 2 upon 3 is equal to minus 34 upon 30. That is the product of the rational numbers minus 17 upon 10 and 2 upon 3 is equal to minus 34 upon 30. Now we know that 15 2 times is 30 and 17 2 times is 34 so we get the product of rational numbers minus 17 upon 10 and 2 upon 3 would be equal to minus 17 upon 15. We need to divide the sum of these two rational numbers that is 12 upon 5 and minus 11 upon 6 by the product of the rational numbers minus 17 upon 10 and 2 upon 3. So we have 17 upon 30 that is the sum of the given two rational numbers divided by the product of the given two rational numbers that is minus 17 upon 15. So this is equal to 17 upon 30 multiplied by 15 upon minus 17. Now the 17 cancels with the 17 and we know that 15 2 times is 30 so this would be equal to minus 1 upon 2. So our final answer is minus 1 upon 2. So this completes the session. Hope you have understood the solution for this question.