Looking for a guide on how to tell whether two fractions are rationally equivalent to one another? From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with fraction equivalency in basic math.
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How To: Remember "greater than" & "less than" symbols

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How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the slope of a line given 2 points with fractions

How To: Find and sketch the domain of a multivariable function

How To: Find percent by mass & percent composition

How To: Graph an inequality in slopeintercept form

How To: Find the volume of a regular pyramid

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate Faster Than a Calculator

How To: Find a number given Its percent

How To: Find the area of a parallelogram using geometry

How To: Divide small numbers by big numbers

How To: Calculate the area of a parallelogram

How To: Calculate percent composition for chemistry

How To: Find a missing side of a triangle, similar to another

How To: Translate a shape

How To: Find Leg Lengths and Hypotenuse of a 45 45 90 Triangle

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