Well, 1 Liter plus 1.5 Liters equals 2.5 Liters. We know that milli means 1000, so there are 1000 milliliters in a liters, so, all we have to do is multiply 2.5 liters by 1000 to get 2,500 milliliters!
I run 1 mile every 6 minutes. My friend runs 1 mile every 7 minutes. Lowest Common Multiple: LCM ( 6, 7 ) = 42 minutes. Me : 42 : 6 = 7 miles My friend : 42 : 7 = 6 miles.