20 inches = 50.80 cm
16 inches = 40.64 cm
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20 inches will be the 'diameter' so the 'radius' will be 10 inches.
It is: 9/16-9/20 = 9/80.
The Least Common Multiple (LCM) for 12 16 20 is 240.
Perimeter of [ 16 x 26 ] rectangle = 16 + 16 + 26 + 26 = 84-ft . Perimeter of a 20-ft square = 4 x 20 = 80-ft . The rectangle has the greater perimeter.
To compare the sizes of fractions, we need to find a common denominator. In this case, the least common multiple of 5 and 20 is 20. Converting four fifths to have a denominator of 20, we get 16/20. Comparing 16/20 to 17/20, we see that 17/20 is bigger than 16/20. Therefore, seventeen twentieths is bigger than four fifths.