Question

please help me in maths

Answer 1

Answer:

no:6) -(3/8) .no7) 4/5.

Step-by-step explanation:

5. verify

LHS -(x+y)

= -x + -y

= -3/4 + -2/5

= -23/20.

RHS -x + -y

= -3/4 + -2/5

= -23/20.

therefore LHS=RHS.

NO6)Let the rational number be x/y and y≠0

15/56 ÷x/y = -5/6.

or,15/56×(y/x)= -5/6.

or, x/y= -3/8.

Ans (-3/8).

no7)

let one number is x/y

so,x/y= -2+14/5= 4/5.

Ans 4/5.