Quick math problems?

Question

1. How much is 1/9 of 3/8?
My Answer =
2. 1/16 ÷ 3/4
My Answer =
3. 4/10 ÷ 1/3
My Answer =
4. 2 1/2 + 1 1/16 (mixed number format)
My Answer =
5. 1 3/7 - 4/5
My Answer =
6. 3 1/8 - 2 1/6
My Answer = 1 2/48
7. 3/4 + 7/8
My Answer = 7 52/32
8. 4 1/4 + 3 1/8
My Answer = 12/32
9. 4 * 1/8
My Answer = 4/8

10. If a car averages 50 1/3 miles per hour, how many hours will it take to go 47 1/2 miles?

You did times on some of those when it called for division. I was going to do and put my own answers in to see if I was right..but I dont know how to do it... :(

Answer 1

2. 1 / 16 x 4/3 =1/12
3. 4/10 x 3 /1 = 2/5 x 3 =6/5
4. 5/2 x 16/17 = 40/17
5. 10/7 - 4/5 =22/35
6. 25/8 - 13/6 = 23/24
7. 3/4 x 8/7 =6/7
8. 17/4 x 8/25 =34/25
9. 1/2

10. 1 hour = 50 1/2
? = 47 1/2

= 47 1/2 ( 1) / 50 1/2 = 56 minutes

Answer 2

1. 1/9x3/8=1/24
2. 1/16x4/3=1/12 For this one I canceled.
3. 4/10x3/1=1 1/5
4. 2 8/16+1 1/16=3 9/16
5. 1 15/35+28/35=2 1/5
6. 3 6/48+2 8/48=5 7/24
7. 24/32+38/32=1 2/5
8. 4 8/32+3 4/32=7 3/8
9. 4/1x3/5=1 1/2 For this one I canceled to.
10. I'm sorry I don't really know how to do this one.
I hope this helps.