0.4444
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45 x 20 ÷ 100 =9
The number .45 is 45/100. Since 45 and 100 can be divided by 5, we have9/20. This is the simplified form since 9 and 20 have no common factors.
9 divided by 20 is actually equal to 0.45, perhaps someone forgot the decimal place.
To get a percentage divide the number by 100 and multiply by the required percentage 45 divided by 100 = 0.45 0.45 multiplied by 20 = 9
put 45 over 100 like this 45/100 then reduce, in this case a common denominator would be 5 so 45 divided by 5 = 9 and 100 divided by 5 is 20, now you have 9/20 there are no more numbers that will divide into both 9 and 20 equally in whole numbers so thats it...... 9/20