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Breakdown is a common part of what happens with the exchange of numbers and denominations. Example: {\ display style {\ tfrac {3} {7}}} {\ tfrac {3} {7}} mutually {\ display style {\ tfrac {7} {3}}} {\ tfrac {7} { 3}} The product of fraction and its reciprocal value are 1, so the fraction of reciprocal is a qualitative contrast. The proper break is inappropriate and the improper break is not the same as 1, d. H. Numbers and symbols are not the same, they are a fair fraction.

When the fraction and rupture are equal to the nominal value (z.b {{display style {\ tfrac {7} {7}}} {\ display style {\ tfrac {7} {7}}}, the value is 1 and therefore the breakdown is inaccurate It also gives value 1 in its mutual area and it is also inappropriate.

Each integer can be written as a fraction in the form of numbers. For example, {\ display style {\ tfrac {17} {1}}} {\ tfrac {17} {1}}, in which 1 sometimes invisible denominator is known to go beyond integer zero in each fraction so an interpersonal Behavior 17 is a mutually {{displaystyle {\ tfrac {1} {17}}} {\ tfrac {1} {17}}.


Ratio is the relationship between two or more numbers, which can sometimes be expressed as an abstract. Generally, many components are compared in group and in equal proportions, which numerically indicate the relationship between each group. Ratio is expressed as "Group 1 for Group 1 ... Group N". For example, if there are 12 cars in the car then

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2 is white,

6 red and there are

4 yellow,

2 or 2: 1 is expressed then there are 6 to 2 white red ratios yellow car yellow car white ratio is 2 4 and can be used 4.

If it is expressed as a total share, the ratio is often converted to a fraction. In the above example, many vehicles have a yellow car proportion of 4:12 or 1: 3. We break the ties that can transform and say that the car or yellow car has 4/12 yellow colored. If someone likes randomly multiple cars, one of the three options or options is yellow.

Decimal fraction and percentage

Decimal fraction is a fraction that does not have a specific meaning, but an integer of ten is considered. Decimal part is the normal decimal notation, where the denominator Dezimalsplitter is expressed by the number of digits denoted by the number of digits (z. B. One point, rising dot (•), comma), depending on the decimal (see the decimal decimal divider ). Thus, the number 75 for 0.75 and the under tenant for the second power is 10. 100 because the decimal has two digits on the right side of the divider. In more than 1 decimal number (such as 3.75), the number counter (in this case with value 0.75) is displayed by the right digits of the decimal number. 3.75 Inappropriate Fractions (375/100) or Mixed Number {\ Display Type 3 {\ tfrac {75} {100}}} 3 {\ tfrac {75} {100}} may be written.

With decimal power, decimal fraction can also be expressed in scientific sign, for example 6.023 × 10-7, which is related to 0.0000006023. 10-7 is the bisector of A10. The decimal point 7 divided by 107 is 7 digits left.

The decimal part represents the infinite series with the number of digits with the number of digits on the right. For example




= 0,333 ... used for infinite series 3/10 + 3/100 + 3/1000 + ...

Another type of fraction is percent (Latin percentage means "every hundred" symbol is represented by%), where underlying sectarian is always 100. 51% means 51/100. Zero percent to 100 percent or less percentages are handled in the same way, e.g. 311% belong to 311/100 and -27/100 with respect to -27%.

Peripheral or related parts related perception (PPT), there are 75 parts per million (PPM) 75 parts, 75 / 1,000,000 in the ratio of notation, the number of parts in one more common number while the under 1000 is the denomination.


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