Question

find (x+y) ÷ (x-y) if

(1) x=5/2 , y=-3/4

(2) x=1/4 , y=3/2​

Answer 1

Step-by-step explanation:

i)x=5/2,y=3/4

(x+y)=5/2+3/4=10/4+3/4=(10+3)/4=13/4

(x-y)=5/2-3/4=10/4-3/4=(10-3)/4=7/4

(x+y)÷(x-y)=13/4÷7/4=13/4*4/7=13/7

ii)x=1/4,y=3/2

(x+y)=(1/4+3/2)=1/4+6/4=(1+6)/4=7/4

(x-y)=(1/4-3/2)=1/4-6/4=(1-6)/4= -5/4

(x+y)÷(x-y)=7/4÷ -5/4=7/4*4/-5= -7/5

Answer 2

Answer:

step by step solution:

(x+ y) ÷(x-y)

***if x=5/2 , y =-3/4

then ( 5/2-3/4)/(5/2+3/4)

= 7/4÷l3/4

= 7/4×4/13

= 7/13

** if x=1/4 And y=3/4

then ( 1/4+3/4) ÷ (1/4-3/4)

= 4/4 ÷ (-2/4)

= 1÷ (-2)

= -1/2