Twenty-one hundredths.
21 = twenty-one
You would write it like this 21 or 2.1*10^1.
21/36 in simplest form is 7/12
Twenty-one million, two-thousand nine-hundred fourty-three.
21% = 21/100 in fraction form.
21/125
To write 21 hundred-thousandths in standard form, you first recognize that "hundred-thousandths" is equivalent to dividing by 100,000. Therefore, 21 hundred-thousandths is 21/100,000. In standard form, this would be written as 0.00021.
To write 21 thousandths in decimal form, you would place the decimal point three places to the left of the digit 2, as each place value represents a power of 10. Therefore, 21 thousandths in decimal form is 0.021.
21.012
It is already in its simplest form as a fraction.
21/7 in simplest form is 3/1 = 3