What is the value of 1 × 2 + 3 ÷ 6 × 5 − 4? Express your answer as a common fraction.
1.2 + 3:6.5 - 4
= 2 + 5/2 - 4 = 9/2 - 4 = 1/2
1x 2 + 3 : 6 x 5 - 4 = 2 + 5/2 - 4 = 1/2