1345:3-45

I’m not sure how to read "1345:3-45." Could you clarify the intended operation? Here are the two most common readings, with results:

• If ":" means division and the expression is 1345/3 − 45:

  • 1345/3 − 45 = (1345 − 135)/3 = 1210/3 ≈ 403.3333
  • Exact form: 1210/3

• If ":" means division and the expression is 1345/(3 − 45):

  • 3 − 45 = −42, so 1345/−42 = −1345/42 ≈ −32.0238
  • Exact form: −1345/42

If you meant something else (for example a ratio 1345:3−45 or a different grouping), please tell me the precise parentheses or operators, and I’ll compute it.