7 8 11 when mathematically expressed as a decimal can be 7.09 recur.
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
7 and 8/11 = 7.'72' recurring '72' as a decimal
7/8: = 7 ÷ 8 = 0.875 in decimal
If you mean 7/8 then as a decimal it is 0.875
7/8 as a decimal is 0.875
11/8 + 3/8 = 14/8, reduces to 7/4, or 1 3/4 = 1.75 (decimal)
7/11 = 7 ÷ 11 = 0.636364
11/8 = 1.375
37 to base 8 is (24+7) = 31 in decimal 7 to base 8 is 7 in decimal Multiplying 31 by 7 = 217 in decimal and this is 331 in octal on base 8
11/8 = 1.375
7/8 as a decimal is .875.
Expressed as a decimal, 74 7/8 is equal to 74.875.
7/8 is in simplest form. As a decimal, 7/8 = 0.875