The expression is .

                                         (Replace a with 5, b with 8 and c with 1)           

To simplify the expression follow the order of operations: (PEMDAS)

1.     Evaluate the expressions inside Brackets/Parenthesis (P).

2.     Evaluate Powers/Exponents (E).

3.     Multiply and/or Divide in order from left to right (MD).

4.     Add and/or Subtract in order from left to right (AS).

A simple technique for remembering the order pf operations is turned into phrase

“Please Excuse My Dear Aunty Sally"

First operation is Evaluate the powers.

                                        (Evaluate the power in the numerator: )

Next operation is multiplication. \ \

                                          (Multiply: )

Next operation is Addition. \ \

                                             (Add: 8 + 1 = 9)

Next operation is division. \ \

                                            (Divide:)  

The value of expression is .