Help in solving algebra problems

I am trying to help my grandson with is home work and I am not much help to him. "Can you help me with solving these problems?"

Perform the following operation with fractions:

1.  7   1
    -- +-- =
    9    3

2.  3   1
    -- - -- =
     4   6

3.  7   6
    -- *-- =
    4    11

4   1     1
    -- -:- -- =
     8      4

Simplify.

5.  6 - 24 -:- 2 * 3- 1 =

6.  (2*5)2 =

Simplify and identify the property used:

7.   -4 (x+2) =

8.    1
      -- *8 =
       8

Simplify:

9.    (-15)(-10) =

10.   (-7) + 3 -10 + (-2) =

**** Bonus*****(worth 1/4 points

Simplify by writing the problem, then solving it

Find the quotient of 3 and 6 added to the product if 12 and 12..