The addition of a performance up pipe is a favorite modification among die-hard Subaru tuners around the globe. Invidia's Subaru WRX uppipe is a catless direct bolt on replacement for the factory up pipe in your 2002-07 WRX or STI.
Welcome to SpeedMath-Multiply and Divide! The goal of SpeedMath-Multiply and Divide is to create an equation, as quickly as possible, from the four digits the computer gives you. You can use multiplication and division to create your equation, but you are not allowed to rearrange the digits.
Dividing fractions is just about as easy; there's just one extra step. When you divide by a fraction, the first thing you do is flip-n-multiply. That is, you take the second fraction, flip it upside-down (find the reciprocal), and multiply the first fraction by this flipped fraction.1  Simplify. 2  Simplify.ultiplying fractions is easy: you multiply the top numbers and multiply the bottom numbers. For instance: When possible, you reduce. In the example above, however, nothing reduces, because 8 and 45 have no factors in common.