They form a proper subset of rational numbers.
a decimal fraction means a fraction that changes into a decimal or a decimal that changes into a farction
0.21 is a decimal fraction.
A number expressed in decimal form usually is a fraction. It is simply a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. And, since it is a decimal fraction, there is not another simpler decimal form.
The decimal form of a fraction is either a terminating or recurring decimal.
9/10 fraction .9 decimal
a terminating or recurring decimal fraction.
recurring decimal
a recurring decimal
Terminating decimal
Any number that can be written as a fraction:15.2=152/10 etc. Any number without a decimal or fraction: 15. Any numbers with decimal numbers that end (4, 2.5) or repeat (1/3, 55/9).
recurring
It is a fraction whose denominator has a factor other than 2 or 5.
5/8 A decimal that does not repeat.
For a number to be rational you need to be able to write it as a fraction. To answer your question, it must repeat as a decimal or else terminate which can be thought of as repeating zeroes. Further, every repeating decimal can be written as a fraction and you can find the fraction by using the formula for the sum of an infinite geometric series.
1. take the 1st fraction. divide the NUMERATOR by the DENOMINATOR! 2. ur gonna get a decimal. 3.move the decimal two places to the right. 4. if ur number still has a decimal, round. 5. add a percent sign. 6. repeat with the 2nd fraction
Not sure about a demial, but the number is called a repeating or recurring decimal.
Not sure about a demial, but the number is called a repeating or recurring decimal.