2. The root word of rational is ratio.
4/21/2017
Rational Numbers
The root word of rational is ratio.
Ratios are fractions.
Any number that can be written as the quotient (a fraction) of two integers is a rational number. However, the denominator cannot be 0.

3. 4/21/2017
0.25 -5 3 1 2
are rational numbers.

4. 1 5 - = 2 10 - = 1 5 - = 3 15 - = -5
An integer can be written as a “quotient of 2 integers,” so integers are rational.

5. 3 7 = 3 1 2 3 7 - = 3 7 - = 6 14 =
A mixed number can be written as a “quotient of 2 integers,” so mixed numbers are rational.

6. 4 1 - = 8 2 = 4 1 = 16 4 - =
0.25
A terminating decimal can be written as a “quotient of 2 integers,” so terminating decimals are rational.

7. 3 1 = - 3 1 = 9 3 = -9 -3 =
A repeating decimal can be written as a “quotient of 2 integers,” so repeating decimals are rational.

8. Rational numbers are ... fractions - both simple and mixed
decimals - both repeating and terminating
integers …-4, -3, -2, -1, 0, 1, 2, 3…