 Okay, so let's try this problem here 150 pound adult has nine times the blood How many liters does this person have? So this conversion factor is given to us Okay, one time equals 473 milliliters. Okay, so all you got to do here in this case I was hoping that you would think of nine pints here as an exact number Okay, unfortunately that didn't happen all the time, but it's okay. You know I would do one significant figure or however many significant figures you want But anyways, you're gonna go nine pints Well, we've got this conversion factor finds the mills. So we've got 473 mills over one point Okay, so I can't allow like that But we want to get it into liters, right? So we don't want milliliters So remember one liter equals 1000 milliliters, so that's something you got to know So if we put it like that we've gotten Excuse me milliliters in the numerator No leaders in the denominator those cancel out Now all we got to do is multiply nine times 473 and then divide it by a thousand Well, like I said