Question

0,75:5/6+2,5 Х 2/5 - 1: 1 1/9=

Answer 1

1) 75/100:5/6=9/10(0,9)
2)2,5*2/5=1
3)1:1 1/9=1
4)0,9+1=1,9(1 9/10)
5) 1,9-1=0,9
Ответ: 0,9
(я делал по действиям, если вам надо, то пиши так)

Answer 2

To solve this equation, we need to follow the order of operations, which is PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction) to simplify the expression:

First, let's simplify the multiplication and division in the expression:

• 5/6 + 2.5 x 2/5 - 1/1 1/9
• 5/6 + 1.0 - 1/10/9 (Recall that dividing by a fraction is the same as multiplying by its reciprocal)
• 5/6 + 1.0 - 9/10

Next, let's add and subtract to simplify further:

• (5/6 + 1.0) - 9/10
• (5/6 + 6/6) - 9/10 (We can convert 1.0 to an equivalent fraction with a denominator of 6/6)
• 11/6 - 9/10 (We need to find a common denominator to add the fractions)
• (55/30) - (27/30)
• 28/30
• 14/15

Therefore, the solution to the equation is 14/15.

Answer 3

To solve this equation, we need to follow the order of operations, also known as PEMDAS:

P: Parentheses E: Exponents M: Multiplication and Division (from left to right) D: Addition and Subtraction (from left to right)

Let's apply this to the given equation:

0.75: 5/6 + 2.5 x 2/5 - 1 : 1 1/9

Step 1: Convert the mixed number to an improper fraction

1 1/9 = (1 x 9 + 1) / 9 = 10/9

Step 2: Simplify the division

0.75 ÷ 5/6 = 0.75 x 6/5 = 0.9

1 ÷ 10/9 = 1 x 9/10 = 0.9

Step 3: Apply multiplication and division from left to right

2.5 x 2/5 = 1

0.9 + 1 - 0.9 = 1

Therefore, the solution is 1.