26 and 21/20= 26 + 1.05= 27.05
7/21:= 7 ÷ 21= 0.333 in decimal
21
7 4/21 in decimal form is 7.190476 . . .
3
0.913
21/20 is in its simplest form.
0.7
The fraction 20/21 is already in lowest terms.
121 is already in the simplest form. It can be written as 0.047619 in decimal form (rounded to 6 decimal places).
-9 divided by 20 is -4.5
21over 150 written as a decimal = 0.14