12274:34+1357*27=

To solve the expression 12274:34+1357*27=, we need to follow the order of operations, which is parentheses, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, let's calculate 1357*27, which equals 36639.

Now, let's perform the remaining operation of division: 12274:34, which equals 361.

Lastly, add the results of the multiplication and division: 36639 + 361 = 37000.

Therefore, the answer to the expression 12274:34+1357*27= is 37000.