Question

What is the value of the expression 7/6-(18+27)

Answer 1

If you use PEMDAS then you first add 18 and 27 to get 45 and then convert 7/6 to a number which gets you 1.16 and then subtract both 1.16-45 to get -43.84

Answer 2

`-(263)/(6)` or
`-43.8333.`

Explanation:

1. Write the expression.

`(7)/(6) -(18+27)`

REMEMBER TO USE PEMDAS!

2. Solve the parenthesis.

`(7)/(6) -(45)\\ \\(7)/(6) -45`

3. Find a common denominator between the numbers.

This can be done by multiplying number 45 by the denominator of the fraction (6) and adding 6 as a denominator of 45.

`(45)/(6)*6\\ \\ (270)/(6)`

4. Return to the original expression and rewrite.

`(7)/(6) -(270)/(6)`

5. Solve the subtraction of fractions.

`(7-270)/(6)=\\ \\-(263)/(6)`

Since the numerator of this fraction (263) is a prime number, the fraction cannot be further simplified and it's the final result.