Q. 944.0( 5 Votes )

Taking and find :

(a) the rational number which when added to x gives y.

(b) the rational number which subtracted from y gives z.

(c) the rational number which when added to z gives us x.

(d) the rational number which when multiplied by y to get x.

(e) the reciprocal of x + y.

(f) the sum of reciprocals of x and y.

(g) (x ÷ y) × z

(h) (x – y) + z

(i) x + (y + z)

(j) x ÷ (y ÷ z)

(k) x – (y + z)

Answer :

(a) Let’s the rational number is p.


x + p = y


p = y – x


p =


p =


p =


p =


(b) Let’s the rational number is p.


y – p = z


p = y – z


p =


p =


p =


(c) z + p = x


p = x – z


p =


p =


p =


p =


p × y = x


p =


p = =


p =


(e) The reciprocal of x + y =



=


(f) The reciprocals of x and y are =


The sum of reciprocals of x and y are =



=


=



(g) () ×


×




(h) (- ) +


() +





(i)


+ ()


+ ()




(j)


÷ ()


÷




(k)


- ()



=



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