Question

I NEED HELP WITH THIS PLEASE.
Adding and Subtracting Rational Expressions
3/x + 13/x-11

Answer 1

\[\frac{ 3 }{ x }+\frac{ 13 }{ x-11 }\]
is that ur question ?

Answer 2

yes

Answer 3

first take L.C.M of the denominator
and it's for x and x-11 is x(x-11)
\[\frac{ 3(x-11)+13x }{ x(x-11) }\]

Answer 4

okay. whats next?

Answer 5

then simplify
\[\frac{ 3x-33+13x }{ x(x-11) }\]
\[=\frac{ 16x-33 }{ x(x-11) }\]

Answer 6

don't they have to be separated? I don't think I combine the fractions them until after I simplify them, right?

Answer 7

Also Can you help me with 2 more please? if you have time?

Answer 8

\[\frac{ 16x }{x(x-11) }-\frac{ 33 }{ x(x-11) }=\frac{ 16 }{ x-11}-\frac{ 33 }{ x ^{2}-11x }\]

Answer 9

I have two more questions if you can help me please

Answer 10

ok

Answer 11

5/4x^2 - y/14xz

Answer 12

wait. its 5/4x^2y - y/14xz

Answer 13

\[\frac{ 5 }{ 4x^2 }-\frac{ y }{ 14xz } \]
as in the previous question we take the L.C.M
\[\frac{ 70z }{56x ^{2}z }-\frac{ 4xy }{ 56x ^{2} z}\]

Answer 14

\[=\frac{ 5z }{ 4x ^{2}z }-\frac{ xy }{ 14x ^{2}z }\]

Answer 15

is that for 5/4x^2y - y/14xz?

Answer 16

is this the answer?

frac {5}{4x^{2}y}-\frac {y}{14xz}
Take LCM
\frac {5*(14)xz-4*4x^{2y}}{4x^{2}y*14xz}
\frac {60xz-16x^{2}y}{4x^{2}y*14xz}
Taking commons,
\frac {4x(15z-4xy)}{2x(2xy*7z)}
\frac {2(15z-4xy)}{(2xy*7z)}

Answer 17

if it is, I can't really understand it? Can you draw it out?