How to convert a fraction to the simplest term

Okay so take 12/20 for example 12 is divisible by 4 now check if 20 is divisible by 4 so that would be 3/5

Hope that this helped you (;

The sum of each of the angles in a triangle always equals 180. We are given angles A and C so all we need to do is add them together and subtract from 180 to find the missing angle.

Angle C is 34
Angle A is 90 (that little box indicates 90)
34+90=124
180-124=56

Ange B is 56 degrees.

Hope this helps!!