21 over 72, or 7 over 24 (simplified)
8/3 x 2/7 is 16/21
2.625 is, regardless of where your parentheses were.
Five multiplied by 3/8 is 1 7/8
8
49/64 is.
21/32, which is already in lowest terms
7/8 multiplied by 8 equals 7.
5 plus 3 is 8, multiplied by 7 is 56.
7 over 40
8/7 x 2/7 is 16/49
3/5*7/8*5/3 = 7/8 (3/5*5/3 = 1)
It is 0.113636