Decimal fractions are easy to use. They are distinguished by calculators and many computer programs. But sometimes happens it is necessary to make a proportion, for example. For this purpose it is necessary to transfer decimal fraction to usual fraction. It is possible if to make small digression to the school program.
Instruction
1. Take, for example, decimal fraction ""2.5"". Say this number aloud and you will understand what a fractional part is ""five tenth"". Write down fractional expression later of a comma in the form of simple fraction - ""5/10"". As a result the initial number will look so - ""2 5/10"".
2. Reduce a fractional part of the turned-out number. For this purpose the numerator and a denominator of fraction need to be divided into the same divider. In this case this number ""5"". So, ""5/10"" it will be transformed to ""1/2"". As a result the initial fraction will look so - ""2 1/2"".
3. To give to number the finished look, it is possible to present its whole part also in the form of simple fraction with a denominator ""2"". So, ""2"" is ""4/2"" (divide numerator and a denominator at each other, and you receive ""2""). Now to ""4/2"" add ""1/2"", and ""5/2"" will turn out. Thus, the initial decimal fraction ""2.5"" turned into a common fraction ""5/2"". Transfer any other decimal fraction to a common fraction by analogy.