Question

HELP???
reciprocal of -2/15? I got -1/30, is this correct?

Answer 1

reciprocal of -2/15 = \(\dfrac{1}{\frac{-2}{15}}\)

Answer 2

\[\dfrac{1}{\frac{-2}{15}}\\~\\~\\\dfrac{1}{\frac{-2}{15}}\cdot1\\~\\~\\\dfrac{1}{\frac{-2}{15}}\cdot\dfrac{15}{15}\\~\\~\\\dfrac{15}{-2}\]

Answer 3

makes sense, thank you!

Answer 4

is 15 negative as well?

Answer 5

or just the 2

Answer 6

-(2/15)

Answer 7

well... 15 could be negative, but then 2 must be positive. \(\dfrac{15}{-2}=-\dfrac{15}{2}=\dfrac{-15}{2}\)

Answer 8

ok, i understand. can you maybe help me with one more question?

Answer 9

Sure

Answer 10

-(9/8)/(3/5)

Answer 11

I got 1 7/8 on my calculator.

Answer 12

Almost, it's \(-1\dfrac{7}{8}\)

Answer 13

you just forgot negative sign

Answer 14

oh yeah, thats what was on my calculator. thanks!

Answer 15

i'd give you another medal if i could.

Answer 16

lol it's ok. you are welcome :)

Answer 17

with the reciprocal...just flip the number, but keep the sign.
-2/3...reciprocal = -3/2
78....reciprocal = 8/7
and if you have a whole number, such as 3, it is the same as 3/1, so the reciprocal would be 1/3.

and when your dividing fractions....just flip what you are dividing by, then multiply
(-9/8) / (3/5).....flip what you are dividing by, then multiply
(-9/8) * (5/3) = -45/24...and when turned to a mixed number, you get - 1 7/8
make sure you flip the right number.....becuse if you do this...
(-9/8) / (3/5) = (-8/9) * (3/5).....this would be wrong...you have to flip what you are dividing by....not the other number.

Answer 18

Thanks @texaschic101 and sorry for the late reply but you were really helpful. I would give you a medal as well, but I already gave micahwood50 the best response, so I can't. /: Maybe next time? Thanks again! :)