9 1/16. (1 times 5 is 5, and 13/16 times 5 is 65/16 which is 4 1/16; the 4 adds to the 5 to give 9, and then the 1/16 makes it 9 1/16.)
1/2+5/16 is the same as 8/16+5/16 = 13/16
5/16 x 2 is 5/8.
35 and 15/16
13/1 multiplied by 1/5 is 2 3/5
13/100
31.25%
1, remainder 5
5 times 13 times 2 = 2 times 5 times 13 = 10 times 13 = 130
0.3125
5/16 = 0.3125
5 x 13/16 = 4 1/16 or 4.0625
You have to know the basic multiplication to be able to do this kind of math. Well, 13 times 5 equals 65. 5 times 3 equals 15, carry your 1. 5 times 1 equals 5 plus the 1 you carried which is 6. Now bring the two numbers 6 and 5 and you will have 65.