+128460 what makes a number rational or irrational?
If it can be expressed as a fraction (a ratio) it is rational
Thus (2/3), (5/1), (6/239) are rational....."Repeating" decimals are rational, as well - ex., .3333333333= (1/3)
Also, any "mixed" number is also rational.....5+(1/3) = 16/5
As you might have guessed by now, anything that we can't express as a fraction is "irrational"
Non-repeating decimals are irrational. Thus, things like "pi" or "e" are irrational. Anything that remains under a "root" is also irrational....√(2), √(pi), 4√(13), for example....
Hope that helps....
+128460 what makes a number rational or irrational?
If it can be expressed as a fraction (a ratio) it is rational
Thus (2/3), (5/1), (6/239) are rational....."Repeating" decimals are rational, as well - ex., .3333333333= (1/3)
Also, any "mixed" number is also rational.....5+(1/3) = 16/5
As you might have guessed by now, anything that we can't express as a fraction is "irrational"
Non-repeating decimals are irrational. Thus, things like "pi" or "e" are irrational. Anything that remains under a "root" is also irrational....√(2), √(pi), 4√(13), for example....
Hope that helps....
