Write as a decimal number
7 18/25

7+18/25=7.72
because 1/25=0.04    (remember that 25*4=100) so 18/25=0.72 :)

Well, in decimals there are the tenths place 0.0 hundredths place 0.00 and thousandths place 0.000 so 25 goes into 100 four times so multiply both 18 and 25 by 4 and you would get 7.72 or 7 and 72 hundredths