Q94 of 110 Page 242

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)

(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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