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All rational numbers are fractional but all fractional numbers are not rational. For example, pi/2 is fractional but not rational.
write 18.575 in fractional notation
0.0475 in fractional form = 19/400
7.2 in fractional notation = 36/5
when do we use crystallization to separate components
Use your brains.
Fractional Distillation
To separate gold from silver, for example.
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Whether it is better to use fractional or simple distillation depends on the liquids being separated and on the boiling points of the liquids. When there is a great difference between the boiling points of the liquids, simple distillation may be a better option. Likewise, if there is a small difference in boiling points, then fractional distillation is used.
It is used in a petroleum refinery to separate out the different hydrocarbons.
Nitrogen and/or carbon monoxide
All rational numbers are fractional but all fractional numbers are not rational. For example, pi/2 is fractional but not rational.
fractional notations of 0.85 is
The integer part of the mixed number is the integer part of the decimal. The use long division to convert the fractional part of the mixed number to the fractional part of the decimal.
1/2, 1/4, 2/3........