4/15 + 7/9 whats the sum

Step-by-step explanation:

54/45 = 1 9/45 = 1 1/5

which is one and one fifth

47/45 = 1 2/45

Step-by-step explanation:

- If you would like a more in-depth explanation please let me know. Hope this helps!

- First you have to find a common denominator. This will be 45.

- Now, figure out what you multiply to get 45. For example...

4  =  12     +    7  =  35    (add these up)  

15     45          9       45      It should equal 47/45 = 1 2/45.

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.