Give two rational numbers whose difference is a rational number

Asked by admin @ in Math viewed by 297 People

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

Answered by admin @


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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