 Hi and how are you all today? The question says complete the addition subtraction box. Now these are the two boxes which are given to us and we need to complete these box. Now if you carefully analyze the first box, we have same denominators for each and every fraction. So we can just add the numerator and get the required third box in each case. First of all 2 plus 4 will give us 6 and we have 3 in the denominator and here also we have 1 plus 2 3 and we have again 3 in the denominator. Further we need to subtract also 2 minus 1 will give us 1 by 3. 4 minus 2 will give us 2 and we have 3 in the denominator but note that these two can be simplified. 3 multiplied by 2 will give us 6 so we have 2 as our answer over here and here we have answer as 1. Now since we are moving downwards we need to subtract 2 minus 1 will give us 1. So these are the required answer for the A part whereas talking about B parts now here we have unlike fractions. So what we are going to do we are adding them up in our rough column and then giving you the answer. First of all 1 by 2 plus 1 by 3 will give us ncm 6 2 multiplied by 3 3 multiplied by 2. So we have in the numerator 3 plus 2 that is equal to 5 by 6. So here first of all we are having 5 by 6 on addition. Similarly here also we will be adding up let's add 1 by 3 and 1 by 4. The same is 12 we will be having 4 plus 3 in the numerator so 7 by 12. Now we will be subtracting as moving downwards that is subtract 1 by 2 and 1 by 3. Taking L same we have 3 minus 2 that is 1 by 6 here only let us subtract 1 by 3 minus 1 by 4. 12 4 minus 3 will give us 1 by 12. Now what we need to we need to find out this we have the fractions let us add them in our rough column only. 1 by 6 plus 1 by 2 12 Lcm is 12 we have 2 plus 1 in the numerator 3 by 12 on cancelling out we have 1 by 4. And if you will be subtracting 5 by 6 and 7 by 12 you again get 1 by 4 and that says that your addition and subtraction was correct. So this completes your session I hope you enjoyed take care of your rough work bye for now.