The parentheses have gotten lost.
Here it is a few different ways:
(45+19) - (4/3) = 64 - 4/3 = 62 and 2/3
( 45 + 19 - 4)/3 = 60/3 = 20
45 + (19-4)/3 = 45 + 15/3 = 50
9.5 x 2 / 0.5 + 45 / 5Use order of operations (PEMDAS)19 / 0.5 + 45 / 538 + 947
48 divided by 6 plus 45 divided by 9 = 8 + 5 = 13
45 ÷ 15 ÷ 3 + 2 = 3
0.0514
45.6842
64
90
101.4222
9
45/36 + 2 is 1.25 + 2 which is 3.25
0.6
Applying the rules of BODMAS, 48 + 45 + 2 + 49 + (1/5) = 144.2