Question

Can anyone tell me -15/3/5(3/5 is a fraction)
Will medal and fan

Answer 1

\[-15\div \frac{ 3 }{ 5 }\]

Answer 2

that's the equation in case it looked confusing in the post

Answer 3

When you divide by a fraction, it is the same as multiplying by the reciprocal (the fraction turned upside down). \[-15 \div\dfrac{3}{5}=-15\times\dfrac{5}{3} \]Can you tell me what the answer is now?

Answer 4

okay so\[\left(\begin{matrix}-15 \\ ?\end{matrix}\right)\]

Answer 5

lol thats supposed to say \[\frac{ -15 }{ 1}\]

Answer 6

\[\dfrac{-15\times5}{3}=-5\times5=?\]

Answer 7

then you multiply the numerators and denominators

Answer 8

its supposed to be -5 or -15? :)

Answer 9

-5, I divided -15 by 3 :) We could also write this as:\[\dfrac{-15\times 5}{3}=\dfrac{-75}{3} =?\]

Answer 10

thats weird in my book it says keep the first fraction change division to multiplication and then replace the 2nd fraction with its reciprocal

Answer 11

oh ok i see what you did you just canceled out the 1?

Answer 12

oh okay so the answer is gunna be\[\frac{ -75 }{ 3}\]

Answer 13

then simplify it to -25?

Answer 14

Oh sorry! I see what you meant now. Do you understand this: \[-15 \div\dfrac{3}{5}=\dfrac{-15}{1}\times\dfrac{5}{3} = \dfrac{-15\times5}{1\times3}\]

Yes I skipped a step as the 1 on the bottom doesn't do anything, sorry for the confusion.

Answer 15

Exactly, great work!

Answer 16

Thank you!