Dividing and multiplying Fractions

Please help with thee questions..
3x5/7= ... = .. ...?
9 x 5/8 = ... = .. ...?
9/10 = ... = .. ...?
5/6 x 2 = ... = .. ...?
1/9 divided by 8 = ... of 1/9 = ...
4/5 divided by 5 = ... of 4/5 = ...
7/8 divided by 2 = ... of 7/8 = ...
5/6 divided by 6 = ... of 5/6 = ...
please help! Would be great!

1).
3 x 5/7
= 15/7

2).
9 x 5/8
= 45/8

3).
9/10
= 0.9

4).
5/6 x 2
= 5/3

5).
1/9 divided by 8
= 1/8 of 1/9
= 1/72

6).
4/5 divided by 5
= 1/5 of 4/5
= 4/25

7).
7/8 divided by 2
= 1/2 of 7/8
= 7/16

8).
5/6 divided by 6
= 1/6 of 5/6
= 5/36

To multiply a fraction with a whole number, put the whole number over 1, then multiply across. For example, the first one, put the 3 over 1, and multiply across. (3/1)*(5/7) 3*5=15, 1*7=7, so you get 15/7, simplified to 2 1/7. To divide fractions, use the reciprocal of the second number, and multiply. For example, for the first dividing one, (1/9)/(8) = (1/9)*(1/8) = 1/72.

So here are the answers:

2 1/7
5 5/8
(Ima skip this one due to... the question)
1 1/6
1/8 1/72
1/5 4/25
1/2 7/16
1/6 5/36