Question

4/7a-2/3a pllllllllllllllllllllllllllllllllllls help

Answer 1

-2/21a

Explanation:

The common number for this two denominator, 7 and 3, is 21.

21/7=3, so you multiply 3 with the numerator 4. giving 12/21a.

You do the same you -2/3a, and you end up getting the equation of:

12/21a-14/21a=-2/21a.

Hope this helps, have a nice day!

Answer 2

`-(2)/(21)`

Explanation:

Step 1: Have a common denominator

`(12)/(21)a -(14)/(21)a\\`

Step 2: Subtract to get answer

`(12)/(21)a -(14)/(21)a = (-2)/(21)a`

Therefore the answer is
`(-2)/(21)a`