Monday 13 August 2012

How to Cross Multiply

Mathematics is a subject through which we can solve the real world problems by using several various mathematical concepts. Arithmetical mathematics can be considered as a part of mathematics which is a collection of various elementary concepts to solve problems. In fundamental mathematics, we usually start with number system. Fractional numbers are the part of number system which represents two integer values in the form of denominator and numerator. Suppose we have two numbers ‘n’ and ‘d’ then they can be represented in fraction form as n / d.
When we want to perform arithmetic operations between two or more fractional numbers like multiplication, comparison, finding greater fraction and so on then we required to use another concept to solve the problem, which is popularly known as cross multiplication. In this situation a question arises in our mind that How To Cross Multiply between fractional numbers.
Cross multiply is a mathematical trick or skill which is used to minimize the calculative part of performing multiplication between fractional numbers. The basic reason behind using this concept is that it generates the result in a quick and easier manner. When we want to perform various operations between fractional numbers we need to remember some points that are given below:
I ) In this phase we need to perform multiplication between numerator of first fraction to the denominator of other fraction and right down the answer one side.
II) After first phase multiply the denominator of first fraction to the numerator of second fraction and right down the result on other side. (know more about Cross Multiply, here)
Through the use of cross multiply we can easily minimize the fraction into their lowest term then we easily perform multiplication between them.
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