The square root of 0.04 is 0.2... is o.2 rational or irrational?
Also the square root of 4/9 is 2/3... is that rational or irrational?
2007-07-09 06:41:18 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Both are rational
Rational numbers can be expressed as a ratio of two integers.
0.2 can be written as 2/10, or 1/5
2/3 is already the ratio of two integers.
2007-07-09 06:43:30 · answer #1 · answered by MamaMia © 7 · 2⤊ 0⤋
A rational number is a number which can be expressed as a ratio of two integers or as a fraction.
An irrational number is any real number that is not a rational number, a number which cannot be expressed as a fraction
0.2 can be expressed as a fraction, 2/10 or 1/5. So both numbers are rational.
2007-07-09 13:45:50 · answer #2 · answered by Lady Geologist 7 · 0⤊ 0⤋
RATIOnal numbers are those that can be expressed as the ratio of two integers.
0.2 can be be expressed as 1 / 5, so it's rational.
2/3 is also rational, since it's the ratio of two integers.
2007-07-09 13:44:31 · answer #3 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
.2 is rational. 2/3 is also rational.
2007-07-09 13:43:39 · answer #4 · answered by Whatsername 6 · 0⤊ 0⤋