207k views
1 vote
SIMPLIFY THE EXPRESSION... PLEASE HELP :(

SIMPLIFY THE EXPRESSION... PLEASE HELP :(-example-1
User Elangovan
by
7.9k points

2 Answers

4 votes

remember
((a)/(b))/((c)/(d))=((a)/(b))((d)/(c))=(ad)/(bc)

try to combine fractions in numerator and denomenator

numerator:
(1)/(x)+(2)/(y)

make common denom

multiply left one by
(y)/(y) and right one by
(x^2)/(x^2)


(y)/(yx^2)+(2x^2)/(yx^2)=(2x^2+y)/(yx^2)

denomenator


(5)/(x)-(6)/(y^2)

make common denom

multiply left one by
(y^2)/(y^2) and right one by
(x)/(x)


(5y^2)/(xy^2)-(6x)/(xy^2)=(5y^2-6x)/(xy^2)


combining we get


((1)/(x^2)+(2)/(y))/((5)/(x)-(6)/(y^2))=


((2x^2+y)/(yx^2))/((-6x+5y^2)/(xy^2))=


((2x^2+y)/(yx^2))((xy^2)/(-6x+5y^2))=


(2x^3y^2+xy^3)/(-6x^3y+5x^2y^3)=


((2x^2y+y^2)/(-6x^2+5xy))((xy)/(xy))=


((2x^2y+y^2)/(-6x^2+5xy))(1)=


(2x^2y+y^2)/(-6x^2+5xy)

User Scoochy
by
8.5k points
4 votes

Answer:

The simplified version of the given expression is
((2x^2y+y^2)/(5xy-6x^2) )

Explanation:

We are given an expression which is a complex fraction:


((1)/(x^2) +(2)/(y) )/((5)/(x) +(6)/(y^2) )

We can take LCM of these fractions to get:


((y+2x^2)/(x^2y) )/((5y^2-6x)/(xy^2) )

Taking the reciprocal of the lower fraction to change it to multiplication:


(y+2x^2)/(x^2y) ×
(xy^2)/(5y^2-6x)


(2x^2y+xy^3)/(5x^2y^3-6x^3y)

Taking xy as common from both the numerator and the denominator to get:


(xy)/(xy) ((2x^2y+y^2)/(5xy-6x^2) )


((2x^2y+y^2)/(5xy-6x^2) )

User Vguzmanp
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories