Question

give two rational numbers whose
difference is a rational number
sum is a rational number
product is a rational number
division is a rational number
justify also

Answer 1

Rational numbers result in rational numbers when added, subtracted, multiplied or divided.  They do not produce irrational numbers.  Irrational numbers are produced when  square roots or cube roots are taken etc.

 A rational number is  a number that can be expressed as a ratio of integers.

m = p / q  = 4/5  = 0.8
n = r / s =  9/2  or 4.5

sum =  4/5 + 9/2 = 53/10
product =  36/10
difference = 9/2 - 4/5 = 37/10
division =  9/2  ÷  4/5    = 45/8  = 5.625

Answer 2

Answer:

Step-by-step explanation:

Rational numbers result in rational numbers when added, subtracted, multiplied or divided.  They do not produce irrational numbers.  Irrational numbers are produced when  square roots or cube roots are taken etc.

 A rational number is  a number that can be expressed as a ratio of integers.

m = p / q  = 4/5  = 0.8

n = r / s =  9/2  or 4.5

sum =  4/5 + 9/2 = 53/10

product =  36/10

difference = 9/2 - 4/5 = 37/10

division =  9/2  ÷  4/5    = 45/8  = 5.625

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