Question

4/5 × (12÷2+4)-1 what is the value of the expression

Answer 1

Given the expression

`(4)/(5)\cdot(12/2+4)-1`

To find the value of the expression you have to follow the order of operations:

- Parentheses

- Exponents

- Multiplication/Division

- Addition/ Subtraction

• First, you have to solve the operations inside the parentheses term:

`12/2+4`

Solve the division first and then the sum:

`12/2+4=6+4=10`

• Write the result on the original expression:

`\begin{gathered} (4)/(5)\cdot(12/2+4)-1 \\ (4)/(5)\cdot10-1 \end{gathered}`

• The next step is to solve the multiplication and finally solve the difference

`(4)/(5)\cdot10-1=8-1=7`

The value of the expression is 7