Here, land area of two places is compared. Florida's land area is expressed as a fraction of the other place's land area. A proper fraction always refers to less than one. If Alaska's land area is considered as one. Florida's land area is less than that of Alaska. The statement also tells that Florida is only a tenth of Alaska's size. To find the fractional value of a number, multiply the number by the given fraction. Thus 1/10 of 1700000 = 170000
So the approximate land area of Florida is 170000 square kilometers.