Decimal numbers are important in our daily computing life. It is the number where we could be able to make computation easier. That is because the calculator, which we are using nowadays, is based in decimal numbers. At the same time, it is also easier to calculate with decimals in the computer as the digital version is only composed of decimals and not of fractions. Although there are some fraction calculators, but the mainstream calculators are only based in decimals. With that, we can also create a number of things and translate them into fraction.
One thing that really bothers a lot of people is how to represent part of the whole through decimals. This is something that has to be worked on by many people. Suppose you want to know what part of 25 people can be afflicted with certain cases. This can only be represented by fraction. Although you can compute the decimal portion in the form of percentages, it is also significant to represent them in the fractions. Sometimes, it takes a lot of calculation to make fraction a lot of sense.
In addition to that, you also have to make sure that you have the simplest form of fraction. This means that a fraction with a number like 500/1000 should be presented as ½. This means you have to go through different computation in order for you to be able to get the correct one. And different calculations entail a lot of time and at the same time effort in your part.
Now, if you are looking for a quick way to compute decimals and convert it into fraction, you will be amazed of this technique and will surely make way for some quick math skills. Before you go through quick math, you have to make sure that you can do the following:
- Memorize sequence of numbers
- Logically apply certain simple rules
- Have knack on distinguishing patterns.
First of all, you need to get good memorization skills as you will be learning how to compute easily. The first thing you have to do is to memorize first the endings in tenths place. This is important as you will progress through this. The tenths place has fixed fraction values.
As you notice, you can distinguish patterns already. There are only few denominators that are repeating by itself. So here is the hint you have.
For denominators 10, you have decimal numbers 0.1, 0.3, 0.7, 0.9. These are numbers which are odd when taken its integral value except 0.5 which has a special case in decimal numbers. All you have to do is to put 10 as their denominator and just copy the number as the numerator. In this way, you can easily represent the following: 1/10, 3/10, 7/10, and 9/10 in its simplest form.
The next thing is the one represented by 5 as denominator. It is very easy to determine. All you have to do is to put 5 as denominators for all even numbers. In this way, numbers like 0.2, 0.4, 0.6, and 0.8 have 5 as its numerator. Then, you have to divide by two the figure of the integer figure of the decimal and you can determine the numerator already.
Example:
When you have 0.2, the first rule of this is that the denominator is 5. So it is represented as /5. Then, we can determine the numerator by dividing the integer on the decimal place by 2 so we have 2 divided by 2 and thus the quotient is 1. In this way, we now have 1/5 as the simplest form of the fraction.
We can also do the same with 0.4, which we can quickly tell us 2/5, 0.6 as 3/5 and lastly 0.8 as 4/5. In this way, you will easily get the patterns, which you can use for your quick math computation on higher numbers aside from the ones you have right now. These are techniques which you can learn on.