Question

all integer are rational number. true or false? please explain

Answer 1

true because integers are all positive numbers, their opposites (negatives), and zero

Answer 2

Of course this is true! Rational numbers are numbers that can be witten as fractions. Intergers are whole numbers and their opposites (negative). So 2 and -3 are intergers, but 3.3 is not because it has a decimal/fraction. All intergers can be written as fractions, so all intergers are ratioanal