Help needed in getting logic for basic calculator.

Hey Guys,
Just tell me how this

"1+2*5/3+6/4*2"

does have an answer as 6 bcoz i am getting answer for this question as 5.
Logic Required;
Mine One:

1+2*5/3+6/4*2
=  1 + 2 * (5 / 3) + (6 / 4) * 2
=  1 + (2 * 1) + (1 * 2)
=  1 + 2 + 2
=  5

but answer is 6.

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