For example is -1.66 is an integer or a rational number?? Pls. Help!
1.66 is not a whole number and is not an integer.
However it can be written as
166/100
and is therefore a rational number unlike for example pi = 3.14159 ..........
see:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&ved=0CDQQFjAB&url=http%3A%2F%2Fwww.thefreedictionary.com%2Finteger&ei=2_vnUvC7EPXKsQT8gYK4Cw&usg=AFQjCNF6w5_3u6gph0xKg0F0mOlGSdIcRQ&sig2=DJUUGZd6Iljo0Z0Ft8f0oQ&bvm=bv.60157871,d.cWc
and
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCkQFjAA&url=http%3A%2F%2Fwww.mathsisfun.com%2Fdefinitions%2Frational-number.html&ei=nfvnUu3PDrDgsATG6YGYCA&usg=AFQjCNELCYxiL0y15eCNOJywy7l5HStPFg&sig2=6Gw51MPAF9l23YCTPfUhQQ&bvm=bv.60157871,d.cWc
To determine if -1.66 is an integer or a rational number, let's break it down:
1. Integer: An integer is a whole number that can be positive, negative, or zero. It does not have any fractional or decimal parts.
Since -1.66 has a decimal part, it is not an integer.
2. Rational Number: A rational number is any number that can be expressed as a fraction, where the numerator and denominator are both integers.
To determine if -1.66 is a rational number, we need to check if it can be written as a fraction.
-1.66 can be expressed as -166/100. By simplifying this fraction, we get -83/50.
Since -83/50 is a fraction and both the numerator and denominator are integers, -1.66 is a rational number.
In conclusion, -1.66 is a rational number.
To determine whether -1.66 is an integer or a rational number, let's first define what these terms mean:
1. Integer: An integer is a whole number that can be either positive, negative, or zero. It does not contain any fractional or decimal parts.
2. Rational number: A rational number is any number that can be expressed as the ratio of two integers, where the denominator is not zero. Rational numbers can be positive, negative, or zero. They can include both whole numbers and fractions.
Now, let's determine whether -1.66 is an integer or a rational number:
-1.66 is a decimal number, which means it has a fractional part. This indicates that it is not an integer because integers cannot have decimal parts.
However, -1.66 can be expressed as the ratio of -166 and 100, both of which are integers. So, -1.66 is a rational number.
To summarize:
- -1.66 is not an integer because it has a decimal part.
- -1.66 is a rational number because it can be expressed as the ratio of two integers.
I hope this explanation helps!