You would first add the fractions which will get you 5/4. then you will add the whole numbers which will get you 11. Then there is a extra number in 5/4 so you can tranfer it to the whole number which will become... 12 and then you will be left with 12 1/4
The answer is 12 1/4. If you add the whole numbers you get 11. Then you add 3/4 and 2/4, which gets you 5/4. 5/4 can then be simplified into 1 1/4. Finally you add 1 1/4 to 11 and you get 12 1/4. Hope this helps :)
If the plane travelled that distance in 5 hours, then all you need to do is divide the distance by 5 to get the distance travelled in one hour. This is obviously presuming that the speed travelled was constant or that this is an average figure.
