Question

66×5÷420÷70+7×99÷3-198÷3×27=

Answer 1

Ответ:

−1550,98877551020

Answer 2

To solve the given expression, let's break it down step by step using the order of operations (PEMDAS/BODMAS).

66 × 5 ÷ 420 ÷ 70 + 7 × 99 ÷ 3 - 198 ÷ 3 × 27

First, perform the multiplications and divisions from left to right:

= 330 ÷ 420 ÷ 70 + 7 × 99 ÷ 3 - 198 ÷ 3 × 27 = 0.785714286 + 7 × 99 ÷ 3 - 198 ÷ 3 × 27

Next, perform the remaining multiplications and divisions:

= 0.785714286 + 693 ÷ 3 - 198 ÷ 3 × 27 = 0.785714286 + 231 - 198 ÷ 3 × 27 = 0.785714286 + 231 - 66 × 27

Finally, perform the remaining additions and subtractions:

= 0.785714286 + 231 - 1,782 = 0.785714286 - 1,550.214285714 = -1,549.428571428

Therefore, the value of the expression 66 × 5 ÷ 420 ÷ 70 + 7 × 99 ÷ 3 - 198 ÷ 3 × 27 is approximately -1,549.428571428.