I understand how to divide fractions by other fractions but want to know why this is a useful mathematical technique. When do you need/want to divide a fraction by another fraction? What’s it useful for? Is it a specialist thing or am I missing an obvious application?
In: Mathematics
You’re missing that those rules also apply to units and variables, not just numbers. Can let you simplify an equation into something much easier to work with.
Lets say you have a speed, in meters per second, a fuel burn rate, in liters per second, and want to know how much fuel you’re burning in liters per kilometer. You would divide liters per second by meters per second to get liters per meter, then multiply by 1000 meters per kilometer to get your result in the desired units.
Latest Answers