Question

-1/5 + 1.37
и
0.8 + (-5/6)

Answer 1

-1/5 + 1.37  = -0,2 + 1,37 = 1,17

и  

0.8 + (-5/6) = 4/5 - 5/6 = 24/30 - 25/30 = -1/30