Question

How do you simplify `\frac { 7a } { 7a ^ { 4} }`?

Answer 1

`1/a ^ { 3}`

Explanation:

Okay so `\frac { 7a } { 7a ^ { 4} }` means

`(7 * a)/(7 * a * a * a * a)`

When you're in doubt always expand!

When expanding you see the bigger picture, now remember after this we cancel stuff out to make it easier to understand

For example take `\frac { 24 } { 4 }`. On a test would you multiply `\frac { 24 } { 4 }` or `6`. Which one is easier? Same goes with this!

Cancel the redundant letters and numbers in this case the number `7` and an `a`.

Now the top part is gone and there is `a ^ { 3}` left. Which is on the bottom but since the top part make sure to put 1 at the top!