Question

3:8-7+10:4+(7+9+4:9+1)

Answer 1

3:8-7+10:4+(7+9+4:9+1)=0,375-7+2,5+(17+4:9)=-4,125+(17+4:9)=-33:8+157:9=959:72=13×23/72

Answer 2

To solve the expression 3:8-7+10:4+(7+9+4:9+1), you should follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's break down the expression step by step:

1. Inside the innermost parentheses, you have (7+9+4:9+1):

   • 7 + 9 = 16
   • 4 divided by 9 ≈ 0.4444
   • 16 + 0.4444 + 1 = 17.4444

2. Now the expression becomes: 3:8 - 7 + 10:4 + 17.4444

3. Perform the divisions:

   • 3 divided by 8 ≈ 0.375
   • 10 divided by 4 = 2

4. Now the expression becomes: 0.375 - 7 + 2 + 17.4444

5. Perform the addition and subtraction from left to right:

   • 0.375 - 7 ≈ -6.625
   • -6.625 + 2 ≈ -4.625
   • -4.625 + 17.4444 ≈ 12.8194

So, the result of the expression is approximately 12.8194.