Tuesday, March 06, 2007

Notes on Ratios, Rates, & Proportions

Ratios are the comparison of two numbers.

Rates are special ratios; they compare two numbers with different units. Unit rates are rates that have a denominator as one.

Proportions "compare" equivalent ratios. You can determine whether two ratios are truly equivalent by comparing their cross products. You can also use this method to algebraically find a missing term.


Anonymous said...

i like this article! It really helped me study for my math test!! Thanks :)

Ms. Lambert said...

You're welcome! I'm glad it helped! You should also check out the "Math Dictionary" (see the links section on the right). You might find it useful as well.