Question

1) (3 1/3 +5 1/6)×2/5-2 3/4÷(1 1/2-2/5)=​

Answer 1

Ответ:

Пошаговое объяснение:

(10/3+31/6)*2/5 - 11/4:(3/2-2/5)=17/2*2/5 - 11/4:11/10= 17/5-10/4=9/10

Answer 2

Ответ:

9/10

Пошаговое объяснение:

(10/3+31/6)*2/5 - 11/4:(3/2-2/5)=17/2*2/5 - 11/4:11/10= 17/5-10/4=9/10

Answer 3

To solve the given expression step by step, follow these calculations:

Step 1: Simplify the fractions in the mixed numbers.

• 3 1/3 = 10/3
• 5 1/6 = 31/6
• 2 3/4 = 11/4
• 1 1/2 = 3/2

Now, the expression becomes:

(10/3 + 31/6) × 2/5 - (11/4 ÷ (3/2 - 2/5))

Step 2: Find the common denominator for addition and subtraction within the parentheses, which is 6:

(20/6 + 31/6) × 2/5 - (11/4 ÷ (3/2 - 2/5))

Step 3: Perform the addition and subtraction within the parentheses:

(51/6) × 2/5 - (11/4 ÷ (11/10))

Step 4: Simplify further:

(17/2) × 2/5 - (11/4 ÷ (11/10))

Step 5: Calculate each part separately:

1. (17/2) × 2/5 = (17/5)
2. (11/4 ÷ (11/10)) = (11/4) × (10/11) = 5/4

Now, the expression becomes:

(17/5) - (5/4)

Step 6: Find a common denominator to subtract the fractions:

(68/20) - (25/20)

Step 7: Subtract the fractions:

(68/20) - (25/20) = 43/20

So, the simplified value of the expression is 43/20, which can also be expressed as 2 3/20.