4.45
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9/20 = (9*5)/(20*5) = 45/100 = 0.459/20 as a decimal is 0.45.
decimal equal to 3 twentieths = 0.153/20:= 3 ÷ 20= 0.15 in decimal
0.36/20:= 6 ÷ 20= 0.3 in decimal
nine twentieths in percentage = 45%= 9/20 * 100% = 0.45 * 100% = 45%
It is: 3/20 = 0.15 as a decimal