Question

1,2 ÷ 1/3 - 1,4 × 2/7​

Answer 1

Ответ:

вот ответ, надеюсь понятно

Answer 2

To solve the expression 1,2 ÷ 1/3 - 1,4 × 2/7, we need to follow the order of operations (also known as PEMDAS/BODMAS). This stands for Parentheses/Brackets, Exponents/Orders, Multiplication/Division, and Addition/Subtraction.

Let's break down the expression step by step:

1. Convert the mixed numbers to fractions: 1,2 = 1 + 2/10 = 1 + 1/5 = 6/5 1,4 = 1 + 4/10 = 1 + 2/5 = 7/5

2. Simplify the expression: 6/5 ÷ 1/3 - 7/5 × 2/7

3. Perform the multiplication: 6/5 ÷ 1/3 - (7/5) × (2/7) = 6/5 ÷ 1/3 - 14/35

4. Simplify further if needed: 6/5 ÷ 1/3 - 14/35 = 6/5 × 3/1 - 14/35 = (18/5) - 14/35

5. Find a common denominator and subtract: (18/5) - 14/35 = (18/5) - (2/5) = (18 - 2)/5 = 16/5

Therefore, the solution to the expression 1,2 ÷ 1/3 - 1,4 × 2/7 is 16/5, which can also be expressed as 3 1/5 or 3.2.