Exactly as it is because 7.2 is already a decimal number
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72 cents is 0.72
7.2
0.72 as a decimal in simplest form is 18/25. To convert a decimal into a fraction (1) write a 1 under the decimal in fraction form: .72/1 (2) remove the decimal and add as many 0's to the right side of the 1 as there are numbers to the right of the decimal: 72/100 (3) reduce the fraction to its lowest terms: 72/100 can be reduced to 18/25
Oh honey, it's simple math. Just multiply 0.72 by 100 to get 72%. It's as easy as pie, but I hope you're not planning on serving up any math problems at the next potluck!
To write 9.75 as a decimal, you simply write the whole number part followed by a decimal point and then the decimal part. Therefore, 9.75 can be written as 9.75 in decimal form.