Answer:
291.87 is a rational number.
Step-by-step explanation:
Rational numbers are those numbers that can be expressed in fractions that is can be written as [tex]\frac{p}{q}[/tex] where p and q are integers and [tex]q\neq 0[/tex].
Consider the given number 291.87
Rewrite the decimal number as a fraction with 1 in the denominator, we get,
[tex]291.87=\frac{291.87}{1}[/tex]
Multiply to remove 2 decimal places. Here, you multiply top and bottom by 10² = 100
[tex]\frac{291.87}{1}=\frac{29187}{100}[/tex]
Thus, the above fraction can be written as,
[tex]\frac{29187}{100}=291\frac{87}{100}[/tex]
Thus, 291.87 is a rational number.