6.5 = 13/2; 13/2 x 3/7 = 39/14 = 2.786 or Two and eleven fourteenths
According to the calculator on my computer 65 x 7 = 455.
8/3 x 2/7 is 16/21
3/14
21 over 72, or 7 over 24 (simplified)
2/21
2.625 is, regardless of where your parentheses were.
5/6 x 3/7 = 5/14 or five fourteenths.
It is 1 and 3/7 times 1/2 = 5/7
2x3x3x3x3x3x5x7 = 17010
0.5143, or 18 / 35
1.75 or 1 and 3/4
It's 21/5 or 4.2.