"21 and a quarter" written as a decimal is 21.25 , regardless of its units.
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21/10 as a decimal is 2.1
Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.
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.
210% = 2.1 as a decimal and 21/10 as a fraction
It is 21 quarters which is 5 and one quarter which is 5.25 in decimal.