为什么有理数很重要?
数字是用于计数和估计对象以及执行数字运算的数值。数字有普通数、整数、客观数和不合理数等不同的类。此外,还有不同种类的数框架,它们具有各种性质,类似于双数框架、八进制数框架、十进制数框架,以及十六进制数框架。
数字系统
数字框架是一个寻址数字的框架。它也被称为数字排列,它描述了一堆值来处理一个数量。这些数字被用作数字,最广泛认可的数字是 0 和 1,它们用于寻址成对的数字。从 0 到 9 的数字用于处理不同种类的数字框架。
定义
数字框架的特点是通过以可预测的方式涉及数字或不同图像来描绘数字。数字中任何数字的价值并不完全由数字、它在数字中的位置以及数字框架的基础决定。这些数字以一种非同寻常的方式处理,使我们能够处理数学任务,如扩展、演绎和除法。让我们来看看数字系统的类型,
- 二进制数制
成对或加倍或二进制数字框架仅使用两个数字:0 和 1。此框架中的数字的底数为 2。数字 0 和 1 是组装件,8 个件构成一个字节。 PC 中的信息被存储为碎片和字节。双数框架不管理不同的数字,例如2、3、4、5等。例如:100012、1111012、10101012是平行数框架或数制中的少数数字实例。
- 八进制数系统
八进制数框架使用八位数字:0、1、2、3、4、5、6 和 7,以 8 为基础。该框架的好处是,与一些不同的框架相比,它的数字更少,因此,计算错误会更少。八进制数框架中排除了 8 和 9 之类的数字。类似地,八进制数框架与双精度数一样用于小型机,但数字从 0 到 7。例如:358、238、1418 是八进制数框架中的一些数字实例
- 十进制数系统
十进制数框架使用十位数字:0、1、2、3、4、5、6、7、8 和 9,基数为 10。十进制数框架是我们普遍使用的框架数字,所有事情都考虑在内。假设任何数字都没有基数,这意味着它的基数是 10。例如:72310、3210、425710 是十进制数框架中的一些数字实例。
- 十六进制数系统
十六进制数框架使用十六位数字/字母集:0、1、2、3、4、5、6、7、8、9 和 A、B、C、D、E、F,基数为 16。这里,十六进制框架的 AF 分别表示十进制数字框架的数字 10-15。该架构用于个人电脑,以减少双架构的庞大测量字符串。例如:7B316、6F16、4B2A16 是十六进制数框架中的几个数字实例。
有理数
头脑清醒的数字或有理数是我们通常在数学中的整数之后研究的一种非常正常的数字。这些数字为 p/q,其中 p 和 q 可以是任意数字,并且 q ≠ 0。由于数字的基本设计,即 p/q 结构,人们经常观察到它混淆了部分和明智的数字之间的分离。除法由整数组成,而明智的数字由整数作为分子和分母组成。我们应该进一步研究这个插图中的合理数字
定义
客观数或有理数是具有 p/q 结构的数,其中 p 和 q 是整数,q 不等于 0。合理数的排列由 Q 表示。在一天结束时,如果一个数字可以作为分子和分母都是数字的部分来传达,那么这个数字就是一个客观的数字。
有理数的例子
如果一个数字可以作为分子和分母都是整数的部分进行交流,则该数字是一个合理的数字。一些正常数字的实例是 1/2、2/3、0.30 或 30/10、-0.7 或 – 7/10、0.141414……或另一方面是 14/99。
为什么有理数很重要?
回答:
Normal numbers or rational numbers are required in light of the fact that there are numerous amounts or measures that regular numbers or numbers alone will not enough depict. Estimation of amounts, whether length, mass, or time, is what is going on.
This is the significance of nonsensical numbers. They fill in the holes and let people model the world in a predictable, smooth, and basic way. They are the magic that binds everything. The sane number line has a larger number of openings than substance. The unreasonable numbers fill those openings to give us what we call genuine numbers, however, there’s nothing true about them. They are essentially the right, most basic method for depicting lines, calculation, capacities, time, the world.
Integers along cannot describe many things, such as the measurements of quantities, etc. Here. rational numbers are required and hence, are introduced in the mathematical system. Reasonable numbers are involved wherever in the day to day existence. How much pocket cash one gets. That is an objective number. In the event that one goes through some sum out of it, it is deduction of reasonable number.
Assuming someone is a competitor, the running race includes levelheaded numbers. Distance to be run, time taken to run the distance, number of members in a race, starting things out or second or third, number of heart beats you require consistently and so on, are generally reasonable numbers.
Rational numbers are genuine numbers which can be written as a/b where a, b are whole numbers and b ≠ 0. We use charges as parts. At the point when you share a pizza or anything. Financing costs on advances and home loans. So that rational numbers are very important
示例问题
问题 1:在 4/2 和 9/3 之间找到一个有理数? .
解决方案:
We realize that the normal of any two numbers lies between the two numbers. We should track down the normal of the given two judicious numbers.
= (4/2) + (9 + 3)/2
= (12/6) + (18 + 6)/2
= (30/6)/(2/1) (When the denominator is null take /1)
= (30/6) × (1/2)
= 30/12
Therefore, the rational number is 30/12
问题2:0是有理数吗?
回答:
Indeed, 0 is a levelheaded number as we can compose it as 0/1 where 0 and 1 are numbers and the denominator isn’t equivalent to 0. So, 0 is a rational number.
问题3:有理数的性质是什么?
回答:
There are six properties of judicious numbers, which are recorded underneath:
- Conclusion Property of Rational Numbers
- Commutative Property of Rational Numbers
- Affiliated Property of Rational Numbers
- Distributive Property of Rational Numbers
- Multiplicative Property of Rational Numbers
- Added substance Property of Rational Numbers
问题4:已知哪些数是有理数,举个例子。
回答:
Numbers that are in the form of p/q where q is not equal to 0. Rational numbers are also known as the terminating or repeating decimal. For example, 1/4, 3/2, 45.676767…, etc. All these examples are the examples of rational numbers.
问题 5:描述给定数字中的哪些是有理数。
- 22.2222…
- 345.9865349
- 12/0
- 456738.097237789……
- 99
回答:
- 22.2222… is a rational number as it is repeating in nature.
- 345.9865349 is a rational number as it is terminating in nature.
- 12/0 is not a rational number as q which is the denominator is not equal to 0.
- 456738.097237789… is not a rational number as it is not repeating not terminating in nature.
- 99 is a rational number.