This is a free lesson from our course in Algebra I
This lesson explains the concept of a ratio. A ratio is a way of comparing a pair of numbers or variables. Properties of ratio: • ratios can be written either using a colon to separate the quantities being compared or as a fraction. • to express any comparison as a ratio, first write the numbers as a fraction, then reduce the fraction to its lowest terms.
• multiple term ratios  Three Term Ratios to be precise. Triple ratio a : b : c is read as a to b to c. You further write a : b: c :: A: B: C to say two triple ratios a : b: c and A: B: C are equal or equivalent when and only when
a/b = A/B and b/c = B/C
(More text below video...)
(Continued from above) Take the case of two variables a
and b. You can compare these two values by showing them as a ratio a
: b or as a/b. For example, the ratio of boys and girls
in a class with three boys and two girls is 3 : 2. You'll also learn how it is possible
to have different sets of numbers which have the same ratio, and how they can be
arrived at by multiplying the ratio with a common multiple.
Winpossible's online math courses and tutorials have gained rapidly popularity since
their launch in 2008. Over 100,000 students have benefited from Winpossible's courses...
these courses in conjunction with free unlimited homework help serve as a very effective
mathtutor for our students.

All of the Winpossible math tutorials have been designed by topnotch instructors
and offer a comprehensive and rigorous math review of that topic.

We guarantee that any student who studies with Winpossible, will get a firm grasp
of the associated problemsolving techniques. Each course has our instructors providing
stepbystep solutions to a wide variety of problems, completely demystifying the
problemsolving process!

Winpossible courses have been used by students for help with homework and by homeschoolers.

Several teachers use Winpossible courses at schools as a supplement for inclass
instruction. They also use our course structure to develop course worksheets.