Question

fill in the blanks:
1)a rational number c/d is called the ____or the multiplicative inverse of another rational numbers -a/b if a/b*c/d=1
2)if a represents any rational numbers then a + 0 and 0+a=___
3)by which rational numbers 2/7is multiplied to get the prodect 1_____
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Answer 1

Answer:

Reciprocal or Multiplicative inverse: Dividing a number by 1 is the multiplicative inverse for Rational, natural, whole numbers and integers, since multiplying it to the original number always results in 1. Hence, ax 1/a = 1/a x a = 1, where a can be rational number or natural number or integer.