Answer:
6/8 - 3/8 = 3/8
Step-by-step explanation:
The denominator is the same so subtract 3 from 6 and then you get 3 With more simplistic questions like that you can usually look them up and find them very easily.
x=2
AB/BD=BC/BE
2/1=x/1
2=1x
140°
155°-15° =140°